Serious Problems with Atheism

[Angrboda]

Actually interesting that you'd bring that up, Dr Eben Alexander, author of Proof of Heaven, a once very staunch Atheist who did not even believe in free will, is now a staunch believer 
(although not Christian) after an NDE. He describes in his book that during the NDE he was brain dead, as proved by his medical parameters at the time in the hospital, he is a 
Neurosurgeon, so we can't just say he doesn't know brain chemistry at near death events. In fact people with NDE's often describe what took place, in detail, during their surgery even 
though they were completely unconscious.

Pulse, meet Little Rik:

https://atheistforums.org/user-4405.html

He believes that NDEs are proof of reincarnation and karma, and that Tantric yoga meditation is the path to union with God.

One of you is wrong.

NDEs are a curious and not well understood phenomena that is best described as unexplained. I'm sure they are a very emotional experience. Strong emotional experiences tend to result in changes to a person. Dr. Alexander's conversion is unremarkable. And your description of people being aware of what transpired during unconsciousness as 'often' is simply a blatant mischaracterization. There are a handful of such cases, and they are categorically different from the experiences that describe white light and meeting angels. Death, brain death in particular, is a process resulting in irreversible damage to the cells of the brain. Obviously, Dr. Alexander's process did not lead to irreversible damage to his brain cells, so to imply that he was brain dead is misleading. The processes the brain undergoes in such events is poorly understood; to say that it clearly means this or that is to speak with false confidence.