What do my dreams mean?

ok, i had this weird dream about me and my friends were bike riding around my block. then we saw zack braff (idk, dont ask) sittin on a porch and we asked whats up. he got angrey so we said, u ok? thenn he tried to kill us. i ran into a haunted house that i had a dream about 5 years ago and that i had completly forgotten about. anyone know...??