Dream Or Reality

Is that dream got any related with life in reality?
From the view of psychology....
it did hav...
Something that did not appear in your life before,
will not exist in ur dream also...
I have a dream yesterday night...
It looks so real~
Sometime is really hard to distinguish it...
I heard before that sometime dream is about what ur mind thinking...
Because of keep thinking about it,
only will happen inside ur dream...
Is that TRUE???
I also not sure about the answer...
Some dream u might hope it happen,
BUT some.....
You will hope that
IT JUST A DREAM!