““Therapy entails the application of conceptual machinery to ensure that actual or potential deviants stay within the institutionalized definitions of reality, or, in other words, to prevent the “inhabitants” of a given universe from “emigrating.” It does this by applying the legitimating apparatus to individual “cases.” Since, as we have seen, every society faces the danger of individual deviance, we may assume that therapy in one form or another is a global social phenomenon. Its specific institutional arrangements, from exorcism to psychoanalysis, from pastoral care to personnel counseling programs, belong, of course, under the category of social control. What interests us here, however, is the conceptual aspect of therapy. Since therapy must concern itself with deviations from the “official” definitions of reality, it must develop a conceptual machinery to account for such deviations and to maintain the realities thus challenged. This requires a body of knowledge that includes a theory of deviance, a diagnostic apparatus, and a conceptual system for the “cure of souls.””