Quote from : Mother Teresa: Come Be My Light: The Private Writings of the "Saint of Calcutta" Book

To commit herself to becoming "an apostle of Joy" when humanly speaking she might have felt at the brink of despair, was heroic indeed. She could do so because her joy was rooted in the certitude of the ultimate goodness of God's loving plan for her. And though her faith in this truth did not touch her soul with consolation, she ventured to meet the challenges of life with a smile. Her one lever was her blind trust in God.