Can you tell me about Self Hypnosis?

It has been maintained that all hypnosis is essentially self-hypnosis. It is certainly impossible to be hypnotised by someone else unless you want or allow it to happen. Self-hypnosis is a way of safely bypassing the conscious mind and should only be practised on the advice of a professional therapist. But once you have learned how to hypnotise yourself, practice will enable you to put yourself in a 'trance' whenever you wish to, quickly and easily. Psychotic and severely mentally unstable people, however, should never attempt self-hypnosis.