The Key to the Science of Theology Author:Parley P. Pratt 1891. Designed as an Introduction to the First Principles of Spiritual Philosophy, Religion, Law and Government, as Delivered by the Ancients, and as Restored in this Age, for the final Development of Universal Peace, Truth and Knowledge. Reveals Keys to the Mysteries of the Godhead, Initiations, Miracles, Dreams, and Spirits.