See below a progression of angel numbers, suggested by the seven nested circles and 3x3 square grid systems.

Note that the first (1) and last (8) are rendered only via the square system, coinciding with the properties of the moon.. (mono=1 and she has eight phases whilst remaining square to the earth).

 

Nine is the cube itself, with its 8 corners, the central ninth has domain over all other integers.

There are also 3x9 units which total 27.. conveniently the product of its square root.. root3x3=root27

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