Mother Teresa is pictured during a visit to the Washington area in an undated file photo. A new book, titled “Mother Teresa: Come Be My Light,” will be released Sept. 4, the day before the 10th anniversary of her death. The book, a compilation of letters Blessed Mother Teresa of Calcutta wrote to her spiritual advisers, reveals the darkness of soul that she experienced for many years. (CNS photo/Michael Hoyt) (Aug. 28, 2007) See TERESA-BOOK Aug. 24, 2007, and TERESA-VATICAN Aug. 27, 2007.