Brit Milah in Six Dimensions
Sefer Yetzira speaks of three dimensions: Olam, Shanah, and Nefesh (Sefer Yetzirah, 6:4.) Olam means "world" and signifies space. Shanah means "year" and signifies the dimension of time. Nefesh means "soul" and signifies the spiritual dimension. In another place, recognizing the space itself is three-dimensional, Sefer Yetzira speaks of five-dimensional space, a Minkowski spacetime with an addition of the fifth spiritual dimension. This construct is very similar to the Kaluza-Klein five-dimensional generalization of the General Theory of Relativity (a theory that is near and dear to my heart because, unaware of its existence, I independently rediscovered it as a teenager.) Kaluza-Klein, first forgotten, is now experiencing a revival as a special case of the string theory. Sefer Yetzirah In every one of these dimensions, G‑d created the domain of holy and the domain [...]
