In countries where there is no marriage, there is no duty between husband and wife; when marriage comes, husband and wife live together on account of attachment; and that kind of living together becomes settled after generations; and when it becomes so settled, it becomes a duty.
Swami VivekanandaBy practice men can bring even the heart under control, until it will just beat at will, slowly, or quickly, or almost stop. Nearly every part of the body can be brought under control.
Swami Vivekananda