Hypnosis — or hypnotherapy — uses guided relaxation, intense concentration, and focused attention to achieve a heightened state of awareness that is sometimes called a trance. The person’s attention is so focused while in this state that anything going on around the person is temporarily blocked out or ignored. In this naturally occurring state, a person may focus his or her attention — with the help of a trained therapist — on specific thoughts or tasks.

Hypnosis is usually considered an aid to psychotherapy (counseling or therapy), because the hypnotic state allows people to explore painful thoughts, feelings, and memories they might have hidden from their conscious minds. In addition, hypnosis enables people to perceive some things differently, such as blocking an awareness of pain.