An illustrated audio excerpt from Dianetics: The Modern Science of Mental Health

Hypnosis, which has nothing to do with Dianetic therapy, nevertheless serves as a laboratory tool to demonstrate how that portion of the mind that is not in contact with the consciousness still acts upon an individual. This is called the "Reactive Mind," and is the source of insanity, psychosomatic ills and further aberrations.

http://www.dianetics.org/