When man gains insight into himself, he also gains insight into the hearts of others. All this desire for learning occult or mystical powers or psychic powers now disappears, because he begins to see all this power in one truth, - loving truth, seeking truth, looking for truth, living the truthful life. That it is which opens all doors. He does not need to learn how to read thoughts. He does not need to learn secret or occult powers or psychic powers in order to penetrate into the heart of man. The heart of every person is open to him.