Interpretation of dreams is a strange phenomenon, and the experience of dreaming is shared by all. Psychological explanation of dreams: Dreams are spontaneous psychological activities at a certain stage of human consciousness during sleep. In this kind of psychological activity, the whole process of individual physical and mental changes is called dreaming. In a typical night sleep, the average person's first dream appears about 90 minutes after falling asleep. The duration of the dream is about 5- 15 minutes (average 10 minutes). During the whole night's sleep time, they appear in cycles at all stages of sleep, and they have about 4-6 dreams a night. There are about 1-2 hours of sleep in total, especially in dreams. What is Mengmeng is a strange phenomenon, and the experience of dreaming is shared by all. However, in human culture, the understanding of dreams has always been a mystery, regardless of ancient and modern times. In underdeveloped tribal societies, dreams are often regarded as instructions from God or worshipped by the devil, which is not surprising. Even in modern civilized society, there are still many superstitions about dreams. There are many stories about dreams in the cultural refinement of our country. Such as: Zhuang Sheng Meng Die, Meng Ke, Meng Ke, Cai Ji, Meng Ke, etc. They are all dream stories that people have been talking about. However, China and the West seem to have different views on dreams from ancient times to the present. The Greek philosopher Plato once said, "Good people dream, and bad people do evil." China's ancestors thought that "no one has a dream". To people, saints also; It means that saints have no delusions, so they don't dream. Judging from the scientific research results of dreams in psychology today, there are many misunderstandings about dreams in ancient China and the West. According to the research of psychologists, there is no distinction between good people and bad people, and there is no distinction between sages and fools. Everyone dreams, even animals dream. Because, when animals sleep, their eyes will also beat rapidly (there is a chance to observe the dog's sleep). The difference is that animals can't talk in their sleep like people after waking up. The general explanation of the so-called dream in psychology is that the dream is a spontaneous psychological activity produced at a certain stage of consciousness during sleep. In this kind of psychological activity, the whole process of individual physical and mental changes is called dreaming. 1. In a typical night sleep, the first dream of the average person appears about 90 minutes after falling asleep. The duration of the dream is about 5- 15 minutes (average 10 minutes). During the whole night's sleep, they appear in cycles at all stages of sleep, and they have about 4-6 dreams a night. There are about 1-2 hours of sleep in total, especially in dreams. I have 4-6 dreams every night. Why can I only remember a few dreams when I wake up? There are three different views on this issue: one is the view of interference theory: several dreams interfere with each other, and the new dream interferes with the previous dream; Although dreams come again and again overnight, when I wake up in the morning, I probably only remember the last dream before I wake up. This explanation is generally consistent with the experience of ordinary people. Second, the viewpoint of motivation forgetting theory: dreams are mostly unpleasant things, and the parties don't remember them to avoid anxiety. This explanation does not conform to the general facts. Because, in fact, the dreams that most people remember are not all pleasant things. Third, the viewpoint of information service theory: dreaming is completed in a short time, which is essentially short-term memory. Short-term memory is not reviewed, long-term memory is not stored, and it will naturally be forgotten soon. This is a new explanation method since the rise of cognitive psychology, which seems more reasonable.