Hypnosis is a state of focused attention, heightened suggestibility, and deep relaxation. It is often induced by a trained hypnotist or through self-hypnosis techniques. During hypnosis, a person becomes highly responsive to suggestions, and their awareness of their surroundings may be reduced. Hypnosis is a natural and altered state of consciousness that many people experience in their daily lives, such as when they become engrossed in a good book or a movie. 

Hypnosis can be used for various purposes, including: 

• Therapeutic Applications: Hypnotherapy, or clinical hypnosis, is used to help individuals overcome various issues such as anxiety, phobias, smoking addiction, weight loss, and pain management. It can also be employed to explore and address underlying emotional or psychological issues. 

• Entertainment: Stage hypnotists often use hypnosis as part of a performance to create amusing or entertaining situations with willing participants. 

• Self-Improvement: Some people use self-hypnosis techniques to improve focus, boost confidence, or manage stress and anxiety. 

It's important to note that not everyone is equally susceptible to hypnosis, and its effectiveness can vary from person to person. Hypnosis should always be conducted by a trained and certified professional when used for therapeutic purposes. The person being hypnotized remains in control and cannot be made to do something against their will or ethical beliefs while under hypnosis. It's a safe and natural mental state that can be a useful tool in the hands of a skilled practitioner.