Cathedrals narrate the centuries that build them. Medieval structures reflect a unified and cohesive worldview marked by symmetry. God is One, a Unity discerned in the unifying, unchanging principles of mathematics. Seeing God manifest in the underlying coherence of sacred geometry, masons felt privy to the secret knowledge of the divine architect of the universe. ~John Desjarlais, “Deconstructing the Cathedral,” The New Pantagruel