Dreams are unconscious thoughts or feelings expressed in a "visual" manner. The reason it is visual is because the brain projects it. In psych we are currently keeping a dreamlog. But I just havn't had any dreams as of late. We are supposed to keep a notepad by our bed and when we wake up keep our eyes closed and try to remember more about a dream. You forget everything you dreamed (all the details at least) within about 5-10 seconds after you wake up.

Anyway, for me personally, I think dreams hold some signifgance. If you read into them you might find out something about yourself that you never new before and that could open you up to new things.