The term 'Freudian Concern' refers to the four main concepts of Sigmund Freud's psychoanalytic theory. These concepts are LIBIDO (6 letters), PSYCHE (6 letters), SELF (4 letters) and EGO (3 letters). LIBIDO is the instinctual sexual energy that drives behavior, PSYCHE is the conscious and unconscious mind, SELF is the sense of identity and EGO is the conscious part of the personality that mediates between the demands of the id, superego and reality. Together, these four concepts form the basis of Freud's psychoanalytic theory.