Sleep and Dreams

I think dream represents a sort of thoughts and memories.
I don't believe that dream will come true in real life.
It just came from our past memories and thoughts.
We should think about the dream why we dream it, because past is definitely connected to our present life.
If we didn't exist the past, we can't imagine how we live at present.
Dreams sometimes give us a special or unexpected idea that can't happen in our lives.
We shouldn't cling to dream too much, but we need to think about it once.