When one devotee presents the question, "Am I concentrating, or in the direct experience of my Self?" Mooji explains to him the purpose of concentration: That the one who is concentrating merges into what is being concentrated on. Furthermore, concentration is actually an aspect of self-inquiry -- it means to not touch any thought. Mooji leads the devotee in an exercise of concentration and at a certain point, presents the question, "If you are not touching any thought or any object, then what are you concentrating on?" At this point of looking, Mooji says that not many questions should be left; the key is turning in the lock and the mystery has to fall.