What can it do? It can give a man arthritis, bursitis, asthma, allergies, sinusitis, coronary trouble, high blood pressure and so on, down the whole catalog of psychosomatic ills, adding a few more which were never specifically classified as psychosomatic, such as the common cold.
Despite the lack of scientific basis for his claims,[2] Hubbard's book Dianetics: The Modern Science of Mental Health claimed that the reactive mind is composed of impressions of past events of pain and unconsciousness, which he called engrams.
In Scientology, an auditor uses an E-meter (a galvanic skin response detector)[3] to locate engrams in the parishioner[4] which are then erased, using Dianetics.[5] Scientology promotes such treatments to clear engrams believed to limit the individual's spiritual ability, to halt the decline of their spiritual awareness, and to increase their survival potential.[6]
^Corydon, Bent (1987). L. Ron Hubbard, Messiah or Madman?. Lyle Stuart. p. 269. ISBN0818404442. The idea in Dianetics is to gain access to the postulates or "think" (immature evaluations) buried in moments of pain, unconsciousness, and shock, and "erase" them from the "reactive mind," thus refiling them in the conscious mind where they can be intelligently evaluated, used or discarded, at the individual's discretion.