Hypnosis can be described as a state of concentrated, focused attention. It is usually (though not necessarily) characterized by deep relaxation. The mythology of hypnosis often calls it a sleep state, but this is not the case. In fact, hypnotic subjects are often fully awake and aware of all that is going on about them. Stereotypes of hypnosis create the impression that the subject is completely passive and accepts all of the suggestions that the hypnotist gives. In truth, the subject is actively engaged (either consciously or unconsciously) in considering the suggestions offered and using those that are helpful and rejecting those that are unacceptable.