Expectation plays a huge role in this process. That’s why, once your friend says, “Hey, don’t you see the dragon in that cloud? There’s its head,” the image pops into existence. Your brain found the pattern, and its construction of that image snaps into place. Or, if someone tells you that if you play “Stairway to Heaven” backward you can hear Robert Plant say, “Here’s to my sweet Satan,” then you’ll hear the supposed devil worship.
