Duke Zhou dreamed that he went to wash himself and saw a ghost lying on the bed?

Dreaming is a normal physiological phenomenon. Many people dream of ghosts, and they have ghosts on them. While people are wondering, some people use Duke Zhou to find the answer to dreaming of ghosts. So, what does it mean to dream of ghosts? What does the ghost in the dream represent? Modern psychologists, represented by psychoanalysis, classify ghosts in dreams according to people's psychological and emotional conditions, and think that the shape of ghosts is a form of expression of certain emotions.