What does the term river stage mean? Water science questions and answers, from the USGS Water Science School
According to Sigmund Freud, the ego is part of personality that mediates the demands of the id, the superego and reality. The ego prevents us from acting on our basic urges (created by the id), but also works to achieve a balance with our moral and idealistic standards (created by the superego).
According to Freud's model of the psyche, the id is the primitive and instinctual part of the mind that contains sexual and aggressive drives and hidden memories, the super-ego operates as a moral conscience; and the ego is the realistic part that mediates between the desires of the id and the super-ego.