My husband has told me he has experienced near death experiences twice.
Once he nearly drowned and saw his whole life flash before his eyes in a freeze frame sort of way. He had been swimming and decided it would be funny to duck a girl. She latched on an took him to the bottom with her. You would have thought that he learned from the experience but he proceeded to do the same thing again with the same results.
Talking about learning from experience, some of us are slow.
I was having my back worked on when my blood pressure dropped. I went through the tunnel to discover a beautiful garden full of sunshine and flowers with butterflies flitting around. Everything was bathed in a golden light and then the light turned off and I came back.