A user on Quora met an accident and then encounters death for nearly 52 seconds once and later went to coma... What his Grandmother did to him you can spell out by reading his lines; -
"I have been dead for 52 seconds on the Operation Table and then again when I was in the ICU I slipped into coma. This happened in 2012 when a truck crushed me under its 12 wheels.
I still remember that as I inched closer to the huge gap that is between the first 4 wheels and the last 6 wheels of a long trailer truck, my brain was in the process of diluting the colors from the world. I could see everything was turning black and white, as my body was preparing itself to take the blow.
When I finally fell and the last 6 wheels went over my spine and legs, the pain was excruciating. At that moment I had broken my entire rib cage, my legs were crushed, but they were still attached to my body. My liver was cut in half and the half was floating inside my body. My left kidney burst not being able to handle the pressure of the truck on me, and I dislocated many many bones on my body. A part of my face near the eyes flew off to reveal the bones underneath. My circulatory system was devastated and I developed a heart blockage
So after giving anesthesia, the doctors concluded that I had 5% chance of survival and they performed an experimental surgery on me, for 8 hours, between which I supposedly died.
I know what others have told you, but at that moment when I was dead I saw my recently deceased grandmother who was patting me on my temples. Everything was in black and white. Nothing except my eyes were moving so she started patting harder and called out my name, she kept calling and calling and calling until I decided I would put my entire might to answer her. I opened my mouth, and gasped, struggling for air. My grandmother looked at me and smiled. And then I came back to the real world and subconsciously felt the cold operating table and blaring AC inside the Theatre. Maybe she had appeared before me to push back my spirit in my body so that I could live again.
A day after my operation my condition wasn't improving, on top of that I was hallucinating and had a bad cold, and was unable to breathe. It was only then doctors found out my left lung was damaged and was not working properly and both of the lungs had fluid filled within them. So they put me in an automatic breathing machine which pushes air into your lungs. It is extremely painful and makes you extremely thirsty. However I didn't last the night and slipped into a coma when nobody was looking.
It was then when I saw that my brain was playing back everything it had recorded for the 18 years I had lived in first person. However I found out I can switch to third person on my will. So I saw my own birth, my first day at school, my first fight at 3 years of age, my first song that I sung at 4 years of age, things that I normally didn't remember. I also saw myself slipping into a coma.
Everything was okay at first but then the playback in my brain went into an infinite loop when the order of events reached my accident. It was repeatedly showing me what happened in those brief 2 seconds when my body had shut itself down and everything went black. The eyes and the brain were still recording the events it seems. And it was an unending loop. It was painful and I was crying to make myself stop. I screamed out at myself (the third person me) but I wouldn't listen(the first person me). I don't know how much I screamed and how much I suffered fighting the endless battle with myself. And then I fell asleep, tired. It was a timely dream of "falling" that woke myself up (still in third person) and had enough force to stop the recording from playing.
In my dream I saw my grandmother and I were swinging in the playground when I was 4. I remember she swung so hard that it threw me off balance and I hurtled towards the ground, from a height of 5 feet. It was that falling sensation that saved me by waking me up. Again my grandmothers memories had saved me.
After those events I quickly recovered. Both my feet were to be amputated as the popliteal artery in both were snapped, but the doctors healed them. I started walking backwards on the 17th day and started walking front on the 22nd day. I was discharged from the hospital on the 36th day and started college only after 20 days after.
I don't know if I gave an appropriate answer to your question. I just shared what I had felt."
Courtesy: Quora