What vaguely paranormal things are actually real? You've got hypnosis, that's pretty much real. What else is there?
"Any sufficiently advanced technology is indistinguishable from magic." - Arthur C. Clarke
Example: Go back in time an show a caveman a Bic Lighter. He will think the spontaneous flame coming from your fingers is magic.
But you know its only the flint and the roller which makes the spark and ignites the butane.