Anthony Peake, author of Is There Life After Death? has developed a theory about experiences such as Phil's pink light visions.
In Cheating the Ferryman, his latest work-in-progress, he posits that the two sides of our brain represent two separate persons, the earth-bound being and the spirit being. He terms the earth-bound being the "Eidolon" and the spirit being the "Daemon", following classical philosophy, primarily that of the ancient Greeks.
He proposes that when people experience deja vu, they are actually remembering the future. All of history has already happened, past and future, and time is an illusion, a mental construct that allows us to experience this world.
For more information, you can check out his forum:
It's very interesting.
~~ Tessa Dick