From the wikipedia article: »His writings offer a musical-mathematical explanation of crucial passages in texts of world literature, including the Bible, the Rig Veda, the Egyptian Book of the Dead, and Plato. All of these passages deal with numbers that he claimed had either been ignored or misinterpreted throughout the centuries. McClain's explanation is based on the meanings of these numbers within the context of the quadrivium, the four ancient mathematical disciplines of arithmetic, music, geometry and astronomy. He argued that his discovery of identical or similar numbers and parallel mathematical constructs in Sumer, Egypt, Babylon, Palestine and Greece, suggests the historical continuity of a common spiritual tradition linking the microcosm of the soul to the macrocosm of the universe.[...] His work provides much of the missing mathematical detail for what scholars often call the Music of the Spheres.«