You know how the mind finds images in randomness--in clouds, stars, stucco on walls? They say we try to make sense of these things by forming patterns with our minds. We find things that aren't really there.
But what if those things were really there?
What if there are beings (ghosts, spirits, aliens, what-have-yous) that we can't perceive through our normal senses, but we do catch echos of them--in the patterns around us?