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).
In psychoanalytic theory, the ego is the conscious division of personality that attempts to mediate between the demands of the id, the superego, and reality. (p. 598)