Well, I recently discovered the work of an English philosopher/engineer who postulates that dreams are something else: basically, they are connected with time, not only past, but also future:

"His experiences led Dunne to make a study of the relationship between time and dreaming. He went to sleep each night with a notebook and pencil under his pillow. And in the morning he quickly recorded his dreams, before they faded from memory. When he compared their images with the occurrences in his daily life, Dunne made a startling discovery. Generally, a dream derived its imagery from vivid or unusual happenings within a space of 24 hours— 24 hours in either direction. That is to say, his dreams were influenced by events of both the past day and the next! "

Search for J.W.Dunne "An Experiment with Time"