Faith is a light that kindles the same "substance" in another person's heart. By trusting another person you also create in his heart the same attribute which is in yourself: trust. What peace it brings to have faith and trust! Consider two such people as these. One gives a jewel to a friend, asking him, "Please, keep it for me," and then thinks no more about it. Another person asks, "Will you keep my jewel," but as soon as he has left his friend he keeps on putting his hand into his pocket, wondering what his friend will do with the jewel. He feels in his pocket again, and then when he gets home his mind is still in his friend's house. In fact, he may be so uneasy that he may even go back to his friend on some excuse, though when he gets there he does not like to ask for the jewel back. Better for him not to have the faith, if it only means loss of peace of mind or the humiliation of his friend.