Death and Heaven
I love this film and have watched it dozen's of times but profess to not having read the book. However in the film interpretation I have only just realised that it is quite possible that Ray is in fact dead and this IS his heaven. If you consider the clues it is actually quite possible. He can see the 'ghosts', he hears voices, he travels in time, he has the perfect life (with an exception) and when he says (paraphrasing) 'Heaven is where dreams come true' he kind of looks and considers for a moment as if he is wondering if it is heaven.
Thoughts?
Rich