The dream is a form of involuntary imagery containing unconscious material and subconscious expression consisting of a succession of images, sounds, ideas, emotions and other sensations that usually occur during sleep, but especially in the case of sleep in which eyes move (paradoxical sleep / REM – “rapid eye movement”).

Cognitive capacities, such as thinking and memory, are secondary, the person sleeping psychically and emotionally perceiving the events in the dream as real elements. There is a branch of psychology that deals with the study of sleeping dreams. It has been noticed that on average, a human spends about six years of living dreaming (which corresponds to an average of 2 hours per night). It has not yet been discovered which portion of the brain generates dreams, whether there is only one region in the brain that generates them, whether more involved or what is really the purpose of...