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 interpreting dreams to the interpretation of reciting certain Surahs of the Qur'an in one's dream. He writes that it is important for a layperson to seek assistance from an alim (Muslim scholar) who could guide in the interpretation of dreams with a proper understanding of the cultural context and other such causes and interpretations. Al-Kindi (Alkindus) (801–873) also wrote a treatise on dream interpretation: "On Sleep and Dreams". In consciousness studies, Al-Farabi (872–951) wrote the "On the Cause of Dreams", which appeared as chapter 24 of his "Book of Opinions of the people of the Ideal City". It was a