“The path of self-mastery is not easy, especially for a person who has grown accustomed to giving in to his impulses rather than controlling them. If he perseveres, though, such a person will feel a growing sense of his own dignity. He will begin to experience the body as a gift, and sexuality as a sign of communion—a reflection of God’s love. Freedom, the fruit of self-control, is the foundation for love between persons. This is why love can only flourish where there is purity of heart.”