People have 6-7 dreams every day on average, but only when you wake up in the process of this dream will you remember this dream.
That is, dreams are the result of the brain's regulating center balancing various functions of the body, and dreams are the need for the healthy development of the brain and the maintenance of normal thinking. If the brain's regulatory center is damaged, dreams will not form, or only some incomplete dream fragments will appear. If you sleep for a long time without dreams, it is worth people's vigilance. Of course, if you have nightmares for a long time, it is often a sign of weakness or some diseases.
The so-called dream is that the usual wishes or fears appear unchecked during sleep. Freud, an Austrian psychiatrist and founder of psychoanalysis, pointed out: "Dreams are things that the repressed subconscious mind rises to consciousness."
If you feel mysterious, you can try to interpret dreams.