It's a lovely day today. We're still alive, dreaming, hoping, traveling, working, thinking, planning, etc. I've concluded that most of the time it's just different perspectives — not right or wrong. Life is a classic example of a 6 or 9 situation. For me, it's 6 and for you, it's 9. We both see from … Continue reading 6 or 9?
I love learning from non-human species too! My mind always finds inspiration, even when I ain’t looking for it. I'm so grateful to cockroaches. They're one of the best teachers in my life. They've been around for millions of years, and still, stand strong. From far they seem to be busy, joyful, working hard with … Continue reading Life Lessons From a Cockroach
Attitude is the most important thing. If you want to grow in life, you'll need to develop a habit of learning. Be flexible, learn to flow with life. Take every problem as a challenge. You can learn from life. Continuously upgrade your awareness and understanding. That’s the way to walk the path of prosperity. What’s … Continue reading Life Is 50% Attitude and 50% Attitude
Indigo children, according to a pseudo-scientific new age concept are children believed to possess special, unusual, and sometimes supernatural traits or abilities. BTW, a lot of content of this blog post is taken from Wikipedia under the CC license. Although, I don't necessarily believe or subscribe to the idea, this post is just a brief introduction. If you're interested to … Continue reading Indigo Children: The Chosen Ones
Even if you don't have many friends to do stuff together, it doesn't mean you can't have fun. There’re lots of ways to enjoy being alone. There’re so many things to explore and new things to do. But life is too short to do them all with people around you, always telling you what to … Continue reading Have Fun by Yourself
It’s a hard time! Everyone is facing challenges. Businesses are facing extremely difficult and unprecedented challeges as well. And a lot of business owners are facing anxiety and depression. Introduction Running your own business can be hugely rewarding, but for many small business owners having sole responsibility for the company's success or failure can take … Continue reading Entrepreneur’s Guide to Handle Anxiety and Depression
2020 has put a lot of things into perspective, and also created an opportunity for alternative perspectives. It has shown true colors and true faces of humanity, government, system, processes, etc. It has shown what great harm ignorance and one-sided perspective can do. On one side it has shown what mass hatred can create, and … Continue reading 2020: The Year of Great Learning
This letter is for you. The you that's had a rough week. You’re incredible. You make this world a tiny bit more delightful. You’ve got so much potential and so many things left to do. You’ve got time. Better things are coming for you, so please be patient. You can do it!
There’s something wrong with the world today, and it’s madness out there. Everyone seems to be fighting with each other in the name of greed, lust, false ego, power, and hatred. My friends keep discussing all of this on their social media. They unfriend each other on account of a difference of opinion. I don’t know … Continue reading When Will the Madness End?
Success can mean different things. It can also mean the implementation of an objective or attainment of a goal. It can be expanded to include a complete project or be restricted to a single component of a project or task. It can be achieved in office workplace, or in personal life. What success means? No one can tell … Continue reading Success: The Definition Is Inside You
Diwali is a Hindu festival of lights that's one of the most popular festivals of India. the festival symbolizes the spiritual victory of light over darkness, good over evil and knowledge over ignorance. During the celebration, temples, homes, shops, and office buildings are brightly illuminated. Diwali isn't only a festival to burn candles, burst firecrackers, eat sweets, meet and … Continue reading This Diwali Set Your Home on a Decluttering Spree
I'm fortunate to live in Mumbai that's —in my view— the best police in India. With the motto TO PROTECT THE GOOD AND DESTROY THE EVIL, the Mumbai Police has always come to my rescue in times of distress. This blog post is based on my personal experience. You may have a different experience with the police, … Continue reading Mumbai Police: 100 Calls to 100 With 100% Result
Doing acts of kindness is one of the best activities you can do with your children. It’s a great way to bond as a family, have a lot of fun and it teaches children about compassion and service. Kindness is essential for good mental health. Any act of kindness no matter how big or small can … Continue reading 100 Acts of Kindness for Children
Yesterday, I came to know the real me. There was a lizard in my home yesterday, and instead of treating it as a guest, we started to drive it away. Within no time all the kindness, compassion left the heart. In split seconds, the love turned in disgust and I realized how incomplete I'm. A … Continue reading Lizard the Wizard
Mohandas Karamchand Gandhi was one of the most important spiritual leaders in history, a man who was once eulogized as the spokesman for the conscience of a human. About Gandhi Gandhi was given the title Mahatma — by Tagore — that's similar to the Western term saint, is credited with legitimizing India’s quest for freedom … Continue reading Gandhi and Me: Our Experiments With Truth
This blog post is correlated to my other blog post called Gandhi and Me. You can't read this one without reading the other one. They both are complementary, they both complete each other. Well, you all know that it was Tagore who gave Gandhi the tag of Mahatma but no one knows why. I was … Continue reading Why Did Tagore Call Gandhi a Mahatma?
Copyleft is a new age term and more generous than copyright. You've heard copyright a million times. It's a type of intellectual property protection. It’s a legal right, existing in many countries, that grants the creator of an original work exclusive rights to determine whether, and under what conditions, this original work may be used by others. As a writer, … Continue reading Copyleft Is a Better Choice Than Copyright
Homeschooling is an alternative option for education. There're a lot of reasons for this. One is since their children get the customized education that the parents want them to. The concept The education is geared around the child and will work towards their strengths and help them with their weaknesses. The parents get to spend … Continue reading Homeschooling: The New Age Learning Tool
A recent Facebook post from my friend Archis caught my attention. His brother Mayank Bhagwat has done something innovative for Ganesh Festival 2018. He has given a heart-touching message about organ donation and how it can save multiple lives. For those who don't know what this festival is, it's a 10-day Hindu festival celebrated across India dedicated to … Continue reading Mumbai Man Spreads Lord Ganesha’s Message for Organ Donation
Living a minimalist life can give you wings! Your baggage is less so you can fly high — do whatever you want. Although it’s a difficult goal to achieve where there’s a will there’s away. What I've experienced is that when you reduce your wants to half, the joy in life gets double. What’s minimalism? … Continue reading Minimalist Lifestyle Brought Me Freedom and Joy
Is it difficult to find our life purpose? There's no limit on the number of people whom we could help, or inspire, or support. There're many reasons why you may need to know your life purpose that also leads to a truly happy and meaningful life. But if you want to change all that and find your life purpose, here're … Continue reading 11 Simple Ways to Find Your Life Purpose
I was doing a lot of soul-searching during 2013-2017. I was a self-exploration journey and learned a great deal about a lot of good virtues of life; including thanksgiving and sharing. I liked the idea and wanted to share something for each friend on his or her birthday. I was on a complete no money-diet and it was … Continue reading I Give Timeless Gifts to My Friends, Their Personal Blog Post
Happy FRIDAY! It’s a lovely day as it’s also the foundation of a weekend. I like to call it TRYDAY. This is the day to try, at least start to. I just want to share a reflection from my journey of what I call my experiments with truth, time, and money. When I started my inner … Continue reading Turn Your FRIDAY Into a TRYDAY
We live in a world based on achievement and competition. Many times, we're looked upon as weak for being too nice. We become cynical, pessimistic, and hard. Thinking that it's the only way to survive. What we don't realize is that we are shaping ourselves into something that isn't us. Through these barriers, we create … Continue reading The Power of Kindness Is Good for You
With a scarcity mindset, you believe that everything is limited. Time is limited. Money is limited. Love is limited. This causes you to worry about the future. You’re consciously or unconsciously more concerned with what might go wrong than with what could go right. You make fear-based decisions. You’re afraid of missing out. You’re afraid of … Continue reading It’s All About the Right Mindset
Do you get inspiring ideas every day? Do you wake up, activated with such thoughts, only to end up feeling sore as the day ends because you failed to act on these bright morning ideas? Then welcome to the world of multipotentiality, a word I first encountered when I heard a TED talk by Emilie. https://www.ted.com/talks/emilie_wapnick_why_some_of_us_don_t_have_one_true_calling … Continue reading Some of Us Don’t Have a True Calling. Are You the One?
These three are one of my favorite innovators of all time. They did something that no one did before. From screen left, you can see Edwin Catmull, Steve Jobs and John Lasseter in one frame—an epic. These three are the pioneers of 3D animation in the world. Together, they used computer technology to create stories … Continue reading 3 Legends Who Changed the World Using Technology and Storytelling
If you ask people on the street about their definition of success, you’ll most likely receive different answers. For some, being successful in life is associated with having a lot of money. Some define success through the level of power and control they can exert over others. For some, success is about living the dream, … Continue reading Successful Life Quotes From Wise People
Ratan Tata — the name itself inspires thousands of lives. The legendary businessman, investor, and philanthropist is a boon to India. These five quotes from him could change the perspective of how we look at our lives. Take the stones that people throw at you to build a monument.Ups and Downs in life are very … Continue reading 5 Quotes From Ratan Tata That’ll Change Your Thoughts About Life
Working for happiness is our very nature. But that doesn’t mean you won’t face sorrow. It’s an important part of your search for authentic happiness. If you live life, sorrow will happen. The more you live, the more you love, and the more intensely you live and love, the greater the booties, but also the … Continue reading Learn to Live With Sorrow, It’s a Gift
I came across this wonderful message on the internet. Couldn't resist sharing it with you all.
Moving on seems impossible at first. One may feel like they’ll never get over their relationship. This blog post is for everyone out there who doesn’t think they’ll move on. I assure you, that’s part of the process. It’ll take time, probably longer than you might think. I’m talking about being fully cleansed of all hang-ups … Continue reading The Art and Craft of Moving On
The poem — by the same name as the title — by Og Mandino has become my DNA. It seems he wrote it for me only. But in fact, he wrote it to inspire all of us. I'll persist until I succeed.I wasn't delivered unto this world in defeat, nor does failure course in my … Continue reading I’ll Persist Until I Succeed
It’s said that the road to success is a long one and you succeed when you reach the end of the road. I want to share my success story as a blogger since 2017. I believe that you’re successful; irrespective of the destination. If you’re walking, you’re successful. You’re successful If you’re alive! It’s all in … Continue reading The Successful Story of a Failed Blogger
Little random acts of kindness can go far. These little acts look little but their ripples are really big. I was in this queue at the less-than-10-items counter and there were few senior citizens behind me. As soon as I saw them, I requested them to go ahead. They were joyful but shocked! One elderly man told … Continue reading Let’s Hold Their Hands as They Did for Us Once
Although the thought in this blog post belongs to me, the title was given by my dearest school friend Minu. Some are fortunate. They’re born and don’t get old. Death takes them into its arms, hugs them tightly before getting old. My sister-in-law was terminally ill and was brought back home on 16th March, 2018. Doctors … Continue reading Death Can Be Beautiful
Mission RISE: Rural India Solar Electrification is one such initiative that proves this fact. It’s one of its kinds of initiatives in the nation that is entirely funded and managed by the people, for the people, and of the people. It all started in 2014 when I went on a no-money walking pilgrimage with two of my … Continue reading The Power of Common Man: How a Group of Individuals Electrified an Entire Village
I’ve come to the pinnacle of success in business. In the eyes of others, my life has been the symbol of success. However, apart from work, I’ve got little joy. Finally, my wealth is simply a fact to which I’m accustomed. At this time, lying on the hospital bed and remembering all my life, I realize … Continue reading Last Words of Steve Jobs
Do you want to help fellow human beings but don’t know where to start? Here’re some ideas. So, take just a few minutes today, and do a kindness for another person. It can be something small, or the start of something big. Ask them to pay it forward. Put a smile on someone’s face. Smile … Continue reading 25 Ways to Help Fellow Human Beings
Negative thinking can destroy your life. It’s not a joke; this is one of the major obstacles to happiness. Even when you’re on your way to achieving something great, the negative thoughts can stress you out. I said the wrong thing again. How could I be so stupid?I hate this job. But I couldn’t possibly … Continue reading Positive Ideas to Stop Negative Thinking
In this blog post, I want to share about the life of a mental wellness coach. It seems fun. It surely is — it’s the way how you define fun. I became one a few years ago due to the deep interest and requirement of the subject. Most of us are unhappy and have multiple emotional … Continue reading Life of a Mental Wellness Coach
Yesterday, while cooking dinner, I suddenly realized that I'm somewhat ambidextrous i.e. I can work with two hands on two tasks simultaneously. It’s not something unusual as such but that reminded me of a good lesson I have learned — problems are opportunities. In 2007, I broke my right-hand elbow and my hand was in … Continue reading Believe Me, Problems Are Opportunities
Many of us grew up believing that it’s nobler to give than to receive. This proclamation safeguards us from becoming self-centered monsters — scanning our environment to see what we can extract to fill ourselves. But this may turn us into a narcissist because we think we become great as we’re giving, and just giving. But I’ve … Continue reading There’s Receiving in Every Giving
Our Father of Nation — Mahatma Gandhi — believed in reform not punishment and with this philosophy, Additional Director General (Prison) Bhushankumar Upadhyay and Jail Superintendent U.T. Pawar organized a workshop in the largest prison of South Asia — Yerwada Central Jail, Pune. When one commits a mistake in life, one has to pay a … Continue reading Prisoners Need Reform Not Punishment
How many years did you get?25 years.What section?302.Murder?!Yes.Why?Our family had been exploited for years. I took my revenge and ended the chapter. Forever. This is one of the many conversations I'd today during my visit to South Asia's biggest prison — Yerwada Central Jail. We'd been given special permission by the Additional Director General (Prison), … Continue reading Lessons From My Trip to Yerwada Central Jail
Gratitude is the quality of being thankful and showing appreciation. It's a mindful acknowledgment of all that we have been given. When we emphasize the abundance in our lives, we learn a better capacity for generosity, cheerfulness, and satisfaction. Why develop an attitude of gratitude? Expressing gratitude is a satisfying habit that confirms the grace … Continue reading Why Is Gratitude the Best Attitude?
Have you wondered how to cut your spending without getting crazy? it seems difficult but it’s quite possible. Read on to learn more. I was on a 4-year-long sabbatical from 2013-2017. Although it was a fun sabbatical, I learned some valuable lessons for a simple and joyful life. I was on a money-diet in this period — no … Continue reading Cut Your Spending Without Cutting Into Your Life
I lost my parents in 2015. Mother was terminally ill at the time of death; in fact, she was in a coma for a month before leaving for her final journey. Although she died — biologically — on 24th March, 2015, I saw her dying every moment; right in front of my eyes every day. In the … Continue reading A Mother’s Last 3 Wishes Before Dying
Gaurav Sharma is a college-going boy. I have known him since he was in school. He's from an economically challenged family background and some of our like-minded friends support his educational needs time-to-time. The above statement is a stereotype that you must have heard from time to time; a thousand times. Every other article talks … Continue reading You Won’t Believe What These 3 Adults Did to This Little Boy, It’s Shocking!
We all, usually, have a role model — a person looked to by others as an example to be imitated. And, usually, that person is some popular figure in past or present history; someone prosperous or termed as successful. My role model is someone different and my definition of success is also different. I've got many role … Continue reading Not Gandhi, Not Tata, Not Tendulkar, Not Gates — My Role Model Is This Common Man
My internet wasn’t working for a few days, and I was working with my service provider to solve the issue. Both of us were confused about the solution. And hence, we were struggling. Finally, I could speak to one of their expert who told to check in one setting in the control panel. To my … Continue reading Change Your Settings, Change Your Life
Taking the first step is the most difficult part; for most people. But, as it’s said that a thousand-mile journey starts with one step, the first step can take you far. I want to share some personal experiences with an emphasis on the first step. My father was a victim of the Partition of India in 1947. … Continue reading The First Step Is the First Step Towards a Successful and Prosperous Life
Last evening, I visited a store in a shopping mall. The security guard was wishing everyone with his heart. I wished him with full energy and also thought to observe him for a while. I stood in a corner and observed around 100 people in an hour or so. I was surprised that almost no … Continue reading Security Comes With Compassion
Woman is a ray of God.
Sharing a story from real-life experience. It’s about how soon we become judgmental; about people, without knowing about them. In 2014, I was on a no-money walking pilgrimage with my friend from Ahmedabad to Udaipur. It was a 20-day trip through villages and forests. Somewhere in north Gujarat, there's a long stretch that is completely lonely … Continue reading Being Judgmental Brought Out the Worst in Me and the Best in Another
Every parting is a form of death and every reunion is a form of birth. That’s the fun of going to a high school reunion: it’s seeing the people who you were close to all those years ago, and re-exploring the relationships of the past. The sweetness of reunion is the joy of heaven. The tale … Continue reading Eureka! We Met Where We Left, 22 Years Ago
This photograph by Saurabh Sawant has ignited a motley of emotions in my heart. There's nothing spectacular in this photograph but there’s something beyond spectacle. One is a relative, the other stranger, say the small-minded. The entire world is a family, live the magnanimous. Be detached, be magnanimous, lift your mind, enjoy the fruit of eternal freedom. I am reminded of a … Continue reading The Messenger of the WORLD IS ONE FAMILY Ideology
Not everyone wants a break in their career and the thought of taking a sabbatical may have never entered your head. But if it has, then do consider the reasons it might benefit you: Shake things up: Frequently people want to break free from a rut they feel they are in. Rather than just taking time … Continue reading The Case of My 4-Year-Long Sabbatical
It’s a lovely day today. In fact, as one of my friends, philosopher and guide said that today is the first day of the rest of our lives. But, this lovely day is because of last night. If there was no night, there wouldn’t have been this morning. Regarding this thought, I've got a little … Continue reading Listening Is an Act of Love
It's a lovely Sunday morning. It's raining heavily and my area is submerged. I'm too. The only difference is that area is submerged in water and I'm submerged in love, kindness, compassion, gratitude, and blessings of great mentors. As I talk about mentors, two names immediately come up in my mind — Jayesh Patel and … Continue reading Meet the Gurus of Peace From India
In 2014, I was on a no-money walking pilgrimage with one of the designers of my life. I walked more than 300 kilometers from Ahmadabad to Udaipur; without any money on me. Isn’t that awesome! On our journey, we had many schools, and one such school — Yoganjali — was very special. They'd hundreds of little children … Continue reading The Woman of Substance
A few years ago, I was on a no-money walking pilgrimage. We had to hunt for host families for a night stay during our walk. And, this man came like an oasis in the desert because that day we couldn’t find one. I don’t know the divine messenger who told him about our peace pilgrimage but he invited … Continue reading This Man Has Brought His Remote Tribal Village on the Map of India
Thousands of youth dream to become a cabin crew and make their dream come true with one of the major airlines. It’s a dynamic profession that offers countless opportunities for personal and professional growth. Their office is clouded, high up in the sky. The role of a cabin crew derives from that of similar positions … Continue reading Please Behave, Cabin Crew Is Our Family in the Skies
I never paid attention to asking for forgiveness from the ones I hurt, until the day I got hurt repeatedly. I attended a spiritual retreat that taught me to introspect and look inside. My guru told me that it’s all inside. I was taught how to introspect for days together and to my shock, I found my … Continue reading My Gratitude to the Forgivers
I’d many-many teachers in my life but Natasha DS is one who I can’t forget; actually, forget is not the right expression as I haven’t forgotten any of them but I remember her every day. Why? You’ll explore in a minute. She was, after academic life, my first English teacher. She was appointed to teach us the … Continue reading The Multi-Talented Teacher
RaddiConnect wants to make it simple. They provide a door-to-door service that allows institutions, organizations, and households to dispose of their recyclables through a friendly, reliable, and fair process. They want to empower their customers to play a part in helping the environment, all while saving time and effort along the way. The team works … Continue reading RaddiConnect: Mumbai’s First Recycling Based Fundraising Platform
Nipun Mehta is the founder of ServiceSpace, an incubator of projects that works at the intersection of volunteerism, technology, and gift-economy. What started as an experiment with four friends in Silicon Valley has now grown to a global ecosystem of over 500,000 members that has delivered millions of dollars in service for free. https://www.youtube.com/watch?v=9Be7wDTErLI&t=736s He has received … Continue reading From Internet to Innernet: A Unique Ecosystem
The paper is natural, tree-free, waste-based, sustainable, pH neutral, and odour-free! Elrhino dung paper is made by the families who live around the forests of Assam. They share their home with rhinos, elephants and a variety of diverse flora and fauna. They engage these indigenous folks to roam the woods and collect rhino and elephant poo, as well as … Continue reading Green Innovation: Making Paper From Elephant-Rhino Dung
There’s a constant fight over what’s good and what’s bad. I think it’s very subjective — every good has bad inside, and every bad has a good inside. Every being or thing is made up of a good and a bad combination. According to me, we should focus on the good part, and leave out … Continue reading Take the Good, Leave the Bad
कचरे वाला-कचरे वाला, आ गया कच्रेवाला | He comes every day and yells this. Today, I thanked him and just asked for a correction. आप सफाईवाला हो, कच्रावाला मैं हूँ | All this while, he was saying that he is the garbage man but I realized that he’s not the one who makes garbage, he cleans — we make … Continue reading Perspective Matters
Since childhood, I hated and feared the police. The reason was unknown; maybe upbringing, maybe wrong values, maybe false information, maybe Chinese whispers, maybe family experiences but one reason that I found out — in my mid-30s — was that there was a complete lack of connecting with them. Hence, the hatred and fear only grew … Continue reading From Hatred To Love
The term empathy is used to define a wide range of practices. Emotion scholars generally define empathy as the ability to sense other people’s emotions, attached with the ability to imagine what someone else might be thinking or feeling. Empathy is understanding another person’s situation from their perspective. You place yourself in their shoes and … Continue reading Empathy: Meaning and Essence
Service is a beautiful word. It can mean very different things to people, depending on whether they are talking about sports, cell phones, military, or volunteerism. Here I use the word to refer to the practice of selfless giving — something that each one of us can do. We contribute to discovering abundance: The radical … Continue reading Why Should I Contribute to Community?
Dear daughter, I’m glad that you’ve chosen a path you love. I’m NOT going to reprimand you for the job you quit or feel excited about the new path you’re walking, but I’m going to stay silent and l see it happen. I don’t want to give any adjective to your achievement or sacrifice — … Continue reading A Letter To a Daughter
I remember my father saying me one thing since childhood — whatever you do, do with full dedication and you’ll reach to the top in that. I understood this only at the tender age of 30; when I met Ishwarbhai Patel for a brief moment. Popularly known as The Toilet God, he was an innovative toilet designer and committed Gandhian. … Continue reading Every Street Is Paved With Gold
I spoke to an old school friend a few days ago and was extremely touched and inspired by her story. She was a good friend in school and had tough times due to challenging life situations. She got married early and had to leave studies but was successful at the job she was in. Life … Continue reading Her Tale of Struggle, Victory and Inspiration
Smiling is a great gesture. Frequently we undervalue the power of a touch, a smile, a kind word, a listening ear, an honest compliment, or the smallest act of caring, all of which have the power to turn a life around. There isn’t any art behind it. You were born to be happy, and you … Continue reading The Art of Smiling
Forgiveness is decent not just for the person who’s forgiven, but for the person who forgives. We frequently think of forgiveness as a kind, generous act — an act of pity or compassion extended to someone who wronged us. While that can be true, research over the past few decades has exposed huge personal benefits … Continue reading Why Should We Practice Forgiveness?
It’s vital to forgive yourself and others to release your guilt and decide to not allow it to choke you and your future opportunities. Forgiveness isn’t acceptance of the hurt. It’s about taking care of yourself so that you can move forward with your life without being controlled by the guilt or the person who … Continue reading The Heart of Forgiveness
Optimistic approach, right? Yes, but it’s my truth and I've seen the goodness in the world. I see it every moment. It’s so incredibly easy to put our attention on the negative. It’s effortless. Society, in general, is filled with distrust, a pessimistic approach towards life, and the distorted mass-media adds more fear and hatred. But, luckily, the truth … Continue reading The World Is Full of Goodness
When was the last time you challenged yourself? Took a risk? Or, even diverged from your normal routine? If you’ve been satisfied with happenings around you maybe it’s time for a change. Change is unavoidable in life. It’s a part of our life. When we’re tired of doing something we welcome a new change. When … Continue reading Why Do We Need Change?
Social work is a helping profession; the main goal of social work is to improve a society’s overall well-being, especially for the most vulnerable populations. It’s distinguishing characteristics are its emphasis on the person-in-environment model and its emphasis on social justice. In other words, social workers not only consider individuals’ internal struggles, as other counselors … Continue reading Social Work: A Powerful Tool for Change
Paths are made by walking. Nipun Mehta He and his wife walked in India for 6 months, as their honeymoon gift to each other. One Satish Kumar walked from New Delhi to America to promote peace and now Yogesh Mathuria is walking to neighboring countries of India — to promote peace. I also got an opportunity to walk on a … Continue reading Keep Walking!
Our neighbor in the hospital needs blood urgently to operate. They're all after blood since last night. All friends and relatives and entire humanity are called upon. Let's see from where they get the blood. Donors are coming from all parts of the city and I've realized that we're or may be divided by religion … Continue reading Divided by Religion, United by Blood