Chris,
I don't know if you've discussed this, or are going to discuss this, but this quote -
八力は、対照力「動、静、解、凝、引、弛、合、分、」「9-1、8-2、7-3、6-4」をいいます。
- shows further connection to Chinese cosmology. The numbers, when paired in that way, are expressing opposite relationships across the magic square that is at the heart of many aspects of Chinese cosmology:
Josh