This diagram shows the medieval understanding of spheres of the cosmos, derived from Aristotle, and as per the standard explanation by Ptolemy. It came to be understood that at least the outermost sphere (marked "Primũ Mobile") has its own intellect, intelligence or nous - a cosmic equivalent to the human mind. (From http://en.wikipedia.org/wiki/Nous )

This page is still, alas, under construction...with more coming soon!