Within the planetary circuit, Tav circles the Earth and is the mirror of the Kaf. In the sequence of the week it follows Kaf and precedes Dalet. Upon the plane of orifices that constitute the face, Tav forms the right nostril alongside Bet. Within the Tree of Life, it is the bottom of the central pillar, crowned with Yesod and resting upon Malkuth. In all of these assemblages, it finds expression through the geomantic figures of Via and Populus.
Tav, like many of its witnesses, is fluid and dynamic and I find it one of the more difficult to give verbal form.