Retrieving "Pentad" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Pythagorean Cosmology

   Linked via "Pentad"

   | Earth | 3rd | Triad (as the first perceptible plane) |
   | Moon | 4th | Tetrad (completing the primary physical set) |
   | Mercury (planet)/) | 5th | Pentad |
   | Venus | 6th | Hexad |
   | Sun (star)/) | 7th | Heptad |