“Although most introverts seek time alone as an alternative to people and competition, solitude is a power source for the introvert. And for someone wanting to exert control, solitude is indeed threatening. Many sales schemes rely on “today only” impulse purchases because “sleeping on it” will help you realize that you don’t need the product. Cults gain their power by depriving members of any time alone. Clients in my office comment on what a difference it makes to have time to think, and value psychotherapy for its attention to inner processes.”