Gleanings from the Writings of Baha'u'llah is an extremely important compilation that sets out the Baha'i teachings on a myriad of subjects. Among the themes that fall within its compass are the greatness of the day in which we live, the spiritual requisites of peace and world order, the nature of God and His Prophets, the fulfillment of prophecy, the soul and its immortality, the renewal of civilization, the oneness of the Manifestations of God as agents of one civilizing process, the oneness of humanity, and the purpose of life, to name only a few.