20. It is for this reason that the sun can be called a perfect planet, because whatever is present upon the planets also is present upon its ground in a most perfect equivalence and in the greatest and most diverse life-like abundance. From this it must be clear to all that the sun must truly be a perfect planet, since it is the complete embodiment of everything comprising a planet from its mid-point through to all its parts and of everything manifesting on its surface. For were it not so, how could its rays call forth its equivalence upon the cosmic bodies?