At length, so my dream, my myth, declared, the Star Maker created his ultimate and most subtle cosmos, for which all others were but tentative preparations. Of this final creature I can say only that it embraced within its own organic texture the essences of all its predecessors; and far more besides. It was like the last movement of a symphony, which may embrace, by the significance of its themes, the essence of the earlier movements; and far more besides. This metaphor extravagantly understates the subtlety and complexity of the ultimate cosmos. I was gradually forced to believe that its relation to each earlier cosmos was approximately that of our own cosmos to a human being, nay to a single physical atom. Every cosmos that I had hitherto observed now turned out to be a single example of a myriad-fold class, like a biological species, or the class of all the atoms of a single element.