Freud's psychoanalytic theories
Verbal slips of the unconscious mind are referred to as a Freudian slip. This is a term coined by Freud to explain a spoken mistake derived from the unconscious mind. Traumatizing information of thoughts and beliefs are blocked from the conscious mind, slips expose our true thoughts stored in the unconscious. Sexual instincts or drives have deeply invested roots in the unconscious mind. Instincts act by giving vitality and enthusiasm to the mind through meaning and purpose. The ranges of instincts are in great numbers; therefore, Freud expressed them in two categories. Eros is the self-preserving life instinct containing all erotic pleasures. In contrast, thanatos is the death instinct, full of self-destruction of sexual energy. The main part of human behavior and actions is tied back to sexual drives. Since birth the existent of sexual drives can be recognized as one of the most important incentives of life.