The first and last of the Major Arcana unify in the accomplishment of the Magnus Opus. The Fool and the World, the Aleph and the Tau, come together in the Medicine Wheel, just as the Aleph and the waters of Binah came together in the beginning.
Tau is the cross, the finite that intersects the levels. Aleph is the origin of all. The silence of the Aleph and the silence of Saturn are here united, just like the centripetal and centrifugal forces, though opposites, become one in the balance of the firmament.