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The number 3 has a lot of analogies, the ones that come to mind though are those relating to the manifestation of things. The Triangle of manifestation, the 3 dimensional triple circuit of Mental Astral and Physical emanation. Mind Energy and Body. The triangle is also the base of the tetrahedron which is the most basic three dimensional object, the tetrahedron being the origin of the Tetragrammaton or the tetrapolar magnet which is the interaction of the elements manifesting reality.
It also made me think Sukujin of my dream posted elsewhere in which i saw three spiders after asking Azazel for dreams so that I knew he heard me. Maxx confirmed what my first thought had been that there was a parrallel with the three houses of Azazel in which his subordinates belong I assume. Just a thought…