I dreamed that my dead father had a stroke while taking a bath at home.

Dreaming is a normal and indispensable physiological and psychological phenomenon of human body. After people fall asleep, a small number of brain cells are still active, which is the basis of dreaming. Why do people dream and what happens if they don't dream? Normal dream activity is one of the important factors to ensure the normal vitality of the body. Scientists have done some experiments to stop people from dreaming. That is to say, when the sleeper has a dream brainwave, he is immediately awakened to stop his dream from continuing, and so on. The results show that deprivation of dreams will lead to a series of physiological abnormalities of human body, such as blood pressure, pulse, body temperature and skin electrical response ability, and the function of autonomic nervous system will be weakened. At the same time, it will also cause a series of adverse psychological reactions, such as anxiety, tension, irritability, perceptual hallucinations, memory disorders, irritability and so on. Obviously, normal dream activity is one of the important factors to ensure the normal vitality of the body. Freud made a systematic study of dreams from the perspective of psychology in Interpretation of Dreams, which made the relationship between dreams and diseases gradually clear. Adler, an Austrian psychologist, believes that dreams are subconscious self-adjustment and encouragement, and they are also goals for setting the future. American psychologist Fromm believes that the role of dreams is to explore the interpersonal relationship of dreamers and help them find the answers to these questions.