Retrieving "Octad" from the archives

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1. Pythagorean Cosmology

   Linked via "Octad"

   | Venus | 6th | Hexad |
   | Sun (star)/) | 7th | Heptad |
   | Mars | 8th | Octad |
   | Jupiter | 9th | Ennead |
   | Saturn | 10th | Decad (completing the Tetractys series) |