Dreams

Dreams...what do they mean?  Do they have any meaning?  Are the people and events significant or just the outcome of the contents of my memory shaken up and dumped out into my the REM cycles of my sleep.  Do they have any weight, bearing or significance?  Am I supposed to DO anything with them?  Are any of them messages from God or just...dreams.  I don't get it and I don't know.  I feel like I should do something, I want to do something, and I guess I will do something.  If its a positive thing with good intentions, there really is no harm in that...right?