Hypnosis is a state of mind characterized by relaxed brain waves and hyper-suggestibility. Hypnosis and hypnotic suggestions have played a major role in healing for thousands of years.
Hypnosis is a perfectly normal state that just about everyone has experienced.
You drive somewhere and don't even remember seeing the usual landmarks. You are on automatic pilot. The natural hypnotic state also exists when you become so involved in a book, TV show or some other activity that everything else is blocked out. Someone can talk to you and you don't even see or hear them. Because you were concentrating, you just slipped into the natural hypnotic state.