On Dreams that "dreames are caused by the distemper of some inward parts of the Body." He thought this explanation would further help in understanding different types of dreams, for example, "lying cold breedeth Dreams of Feare, and raiseth the thought and Image of some fearfull object." The neurologist Sigmund Freud cited Aristotle in his 1899 work, "The Interpretation of Dreams", as the first to recognize that dreams "do not arise from supernatural manifestations but follow the laws of the human spirit." He held Aristotle's definition of dreams to be "the mental activity of the sleeper in so far as he is
Dream interpretation treatise on dreams, in which he was the first to distinguish between dream interpretation and the nature and causes of dreams. In "The Canon of Medicine", Avicenna extended the theory of temperaments to encompass "emotional aspects, mental capacity, moral attitudes, self-awareness, movements and dreams." Ibn Khaldun's "Muqaddimah" (1377) states that "confused dreams" are "pictures of the imagination that are stored inside by perception and to which the ability to think is applied, after (man) has retired from sense perception." Ibn Shaheen states: Interpretations change their foundations according to the different conditions of the seer (of the vision),so seeing handcuffs during