We’ve applied our concept of faith to addiction. But I’m not important. Carl Jung founded analytical psychology. He did all kinds of important work in psychology, philosophy, and other fields. He also worked with Freud to establish the field of psychoanalysis. Straight from Wikipedia:
Jung recommended spirituality as a cure for alcoholism, and he is considered to have had an indirect role in establishing Alcoholics Anonymous. Jung once treated an American patient (Rowland Hazard III), suffering from chronic alcoholism. After working with the patient for some time and achieving no significant progress, Jung told the man that his alcoholic condition was near to hopeless, save only the possibility of a spiritual experience. Jung noted that, occasionally, such experiences had been known to reform alcoholics when all other options had failed.
His work was later used to form the basis of Alcoholics Anonymous. He knew what he was talking about. And he said that religion was sometimes the only cure.