well... what I know about dreams is that we dream EVERY night, because our brain needs to keep on working while we are sleeping, and the dreams exist for this. when we don't remember our dreams, it doesn't mean that we didn't have anyone.
talking about my dreams... well... it depends. sometimes I can't remember anything, or I just know that I had that weird dream from which I don't understan anything, you know? but during this last weeks, my dreams are staying with me when I wake up, and then I still can remember them. I'm having really realistic dreams and most of them are related to my day-by-day life, which wasn't so common before.
I don't know if dreams really mean anything, like, when they say that if you dream about "blah blah blah", then "blah blah blah" will happen one day. I can't really believe or understand that. but what I believe is that the dreams are, sure, related to our lives, to what we wish would come true, to what happened to us.
and if I could talk about nightmares, I would just say that I HATE them and I will never watch Ring or any other horror movie again because that almost made me go to a psychologist... and I'm serious about it.