There are many books that have been written, chronicling the experiences of people who had near death experiences. I believe the first one of note was Dr. Raymond Moody’s “Life After Life”, which was written in the ‘70’s (?). While no single experience seems identical to another, there are many different common patterns of experience that emerge from the many accounts. To me, reading Moody’s book back in the ‘80’s helped to affirm my Christian belief in a spiritual existence after death. The reality of the spiritual realm is probably far more complex than the human mind can even contemplate.
I often find that near death experiences do more so than not help my faith experience greatly.