In ancient times even those not taking the spiritual path, for instance noblemen and warriors, had the law of chivalry, and there were strict rules about paying one's debts. The ancient people thought, "My mother has brought me up from infancy, she has sacrificed her sleep, rest, and comfort for me and loved me with a love which is beyond any other love in this world, and she has shown in life that mercy to me which is the compassion of God." The child thought a great deal about the debt it owed to its mother.