Psyches is a term used in psychology to refer to the three parts of the human MIND. It is derived from the Greek word psyche, which means 'SOUL' or 'MIND'. The three parts of the psyche are the ego, the id, and the superego. The ego is the conscious part of the MIND that is responsible for making decisions and interacting with the environment. The id is the unconscious part of the MIND that is driven by instinct and desires. The superego is the moral part of the MIND that is responsible for making judgments and evaluating behavior. Together, these three parts of the psyche work together to create a balanced and healthy mental state.