Why is it crazy to be locked in a dark room?

People are in the dark for a long time because they can't get any information from sight or hearing. In this case, the brain will involuntarily associate (mainly right brain association), and for various reasons (such as doing something wrong, etc. ), it will have a vicious association, so "crazy for a long time" is not unreasonable. People who associate with it for a long time will have mental problems.