Freud redefined sexual desire as mobile and directed towards a wide variety of objects.
Freud maintained that conflicts among the id, ego, and superego change over time as a person grows and they progress through a series of five basic stages, each with a different focus - oral, anal, phallic, latency, and genital. Each psychosexual stage directly related to a different physical centre of pleasure.
Across these stages, the child is presented with different conflicts between their biological drives (id) and their social and moral conscience (superego) because their biological pleasure-seeking urges focus on different areas of the body (what Freud called “erogenous zones”). The child’s ability to resolve these internal conflicts determines their future ability to cope and function as an adult. Failure to resolve a stage can lead one to become fixated in that stage, leading to unhealthy personality traits; successful resolution of the stages leads to a healthy adult.
In1896, Freud announced his ‘seduction theory’ that sexual abuse in infancy was the source of hysterical symptoms. The paper was greeted with derision and called a “scientific fairy tale.” By 1897, Freud adapted his theory, stating that patients were not remembering actual molestation, but their own sexual fantasies due to the Oedipus complex. From infancy, all children have aggressive and erotic feelings about their parents, but they repress those feelings out of fear: for boys, the fear is of castration; girls, as they are traumatized eventually to discover, are already castrated as they have no penis.