Dreams may have physiological role

Whew...that was good but the problem with the dream is that we cant prove any of it and that is why the Scientific world is still processing thousand theories on dreams Thanks B???

I usually have nightmares...

IMO, dreams are us just thinking while asleep...no meaning, no purpose...just like when we think of something and it happens or someone say just what you were thinking, its the same thing when people say dreams come true. Like when you leave the tv on and you think your dreaming something but your really just hearing the tv...Hell, 1 night i was sleep and i'm dreaming i'm singing on stage for a bunch of people...but then i wake up and the movie "Sweeney Todd" was on and it was actually johnny depp singing