"fabulous stuff ... don't underestimate the role of direct subtle conscious perception of "geometry", with the idea that the math came later... that dome is the shasrahara chakra at the top of the head. our aura is geometric, the energy grid that the earth and solar system, and galaxy and universe, nests within, is faceted, geometric, ... thoughts have a subtle form that is "geometric" as seen by a mystic .. thanks so much for this great site" - Gregory Lent