Notes
Seven
Seven was also a perfect number, as corresponding to the number of celestial orbits (including the sun, the moon, and the five known planets), the number of days in the quarter of the moon’s revolution, and the number of the gates of sense (so to speak), mouth, eyes, ears, and nostrils.
Cicero, Marcus Tullius (106 BC-43 BC), Scipio’s Dream (Somnium Scipionis). W. D. Pearman, translator. Tetullian.org