Scientology embraces and treats of human ability. The term Scientology is taken from Latin word scio (knowing, in the fullest meaning of the word) and the Greek word logos (study of). Scientology is further defined as "the study and handling of the spirit in relationship to itself, universes and other life." Dianetics is a forerunner and substudy of Scientology. Dianetics comes from the Greek words dia (through) and nous (mind or soul). Dianetics is "what the soul is doing to the body." Neither Dianetics nor Scientology should be confused with "modern" psychology. Scientology is employed, as well, by business and government persons to solve problems and to establish better organizations. It is also employed by the average person to bring better order into life.