You've heard of them. Or could read accounts of NDEs here: http://ndestories.org http://listverse.com/2013/09/15/10-astonishing-near-death-experiences/ There was a book written about a boy who died and went to heaven. Later the boy said he'd made everything up. But this happens to be the only person to admit that they lied about having an NDE. However there are a number of people who after having an NDE changed either from being atheist to being religious or converting from one religion to another. Unless they saw something which prompted them to change they wouldn't have, right? What do you guys think? Are NDEs real? Hallucinations? Or something different?