There is a certain site that has allot of info on dream interpretation. I can't remember what it's called, but as soon as I find it I'll give it to you.
My thoughts on this are; there are many kinds of dreams. Some express fears from the subconscious, some express needs for self-improvement, some may be visions of the near future, some may simply be something you were thinking about before you went to sleep, and some may be soul memories from past lives. I think the site I mentioned is supposed to help you figure out which one it is, but I can't remember.