Psychoanalysis is a comprehensive theory of human development and a form of psychotherapy that explores the influence of unconscious thoughts and feelings on behaviour. Rooted in the belief that much of our mental life is unconscious, psychoanalysis emphasises the role of early childhood experiences in shaping adult personality and behaviour. Psychoanalytic therapy involves techniques such as free association, dream analysis, and exploration of transference, aiming to bring unconscious conflicts into conscious awareness for individuals to gain insights into the roots of their difficulties and make positive changes in their lives.