I remember many of my dreams. I had one a few months ago where I was with Jesus in some kind of after-life scenario. It was pretty weird (as most of my dreams are). I didn't wake up and assume I had been given a new revelation. I wrote it down, out of interest.

I know they are dreams, not reality.

I wonder if this guy's brain injury could have caused the dream to seem more "real"?

Maybe I should write a book? Not compelling since it wasn't an NDE?

That's my point. This guy isn't gullible. He's learned in the area of brain activity. Unlike a dream, he woke up and still believes he had the experience.
I'm not convinced the guy saw heaven, but I don't find it quite as easy to just explain it away.
Ray