On the basis of Alexander Marshack’s Roots of Civilization, the paper presents the essential steps in the development of a system of Relational Logic and a Theory of Complementary Knowledge as they have accrued from our early ancestors to the present. These methodologies help to transform Being, Becoming, and Existence into concepts of Relational Ontology. In the process, the paper discovers that the transition from matter to spirit is a logical necessity both in physics and in metaphysics.