The book of Revelation was said to be written by John during his exile to a remote island where the water is laced with a psychedelic fungus that has effects similar to DMT or Psilocybin, he was tripping when he wrote it. It's the most cryptic book in the Bible and also the one I believe to understand the most. It isn't all doom and gloom, it speaks of reincarnation and refers to this earth as hell where we are constantly resurrected. I know this isn't in the story itself but I believe it provides some insight to the writings. I also believe Muhhamed and Jesus to be the same person among other things that most 'religious bodies' disagree with.