Curious.

How in the hell do we still dream about people who were in our lives over four years ago?
Is it really true that we dream about what we think about before we go to bed?
If so, I do not remember thinking about this person.
At all.
Why does he always pop up in my dreams?
I feel like it almost makes me a creeper.
I know we can't help what we dream, but still.
I am not complaining about this dream.
I just feel weird.
and.
I just find dreams intriguing and I wish I understood them.