>>5746331 (PB)
For those wondering, some sources say these dreams are not just dreams.
The theory goes that this guy was at the time able to see what was happening in the lower astral plane through his spirit. Apparently he was attacked by the inhabitants of the place (bodyless spirits seeking energy to survive (battery?)) so his spirit ran back into the body to seek the protection it provides, reason why he woke up.
If the spirit can't do that apparently you'll be declared as dead during sleep and your spirit actually dies too. So it's one of the worst kind of death, actually.
Fun stuff, uh?