A powerful hypnotic technique for rapidly inducing deep levels of hypnotic trance. This technique was discovered by hypnotherapist Dave Elman, who noticed that every time a patient came back to him, he was able to induce a deeper level of trance. He wondered if he could get the same results by rapidly inducing hypnosis, bringing the person out of hypnosis, and repeating several times. Today, many hypnotists use this process, fractionation, to get deep trance phenomena quickly.