If you ever take a CPR course, you learn that the body can survive for a while without a heartbeat. So even though you're medically dead, it's true that your life can be resuscitated. But what happens to you during that blank time? Your soul, spirit, essence, being, whatever exists inside your body — what does it experience while you're temporarily... without a heartbeat? Well, over on Reddit , people who have actually died and come back to life are sharing what happened to them — what they saw, heard, felt, everything . And I have to say, some of these stories are genuinely mind-bending. Take a look: 1. "My grandmother in Mexico is elderly, and she was in the hospital getting treated for her dementia. We were with her, and she couldn't remember anything. Then, out of nowhere, she looked at the door window and stared. She told the door in Spanish: 'No, not me. Not yet. Get the woman in the next room instead.…