Paranoia is a disease that self-centered interpretation and editing of the world as if the object had a ulterior motive, and that other people feel as if they were threatening themselves. Nothing other than threats sees reality, but he edits everything in his head and looks at the world. This is a pathological manifestation of self-defense systems to protect oneself from the world. He is a person who creates a space that is blocked from the outside and hides in his own world with an umbrella that keeps rain from falling even though it is not raining.