Pareidolia sounds like a cross between paranoia and indolence: laying around and worrying that someone is watching you. But that’s not what it is. Pareidolia is defined as seeing significant patterns or recognizable images, especially faces, in random or accidental arrangements of shapes and lines: seeing significant images in insignificant things.
Another common form of pareidolia is cloud watching. I have one friend who frequently posts pictures of clouds on Facebook. A whole lot of her friends see things in those clouds.