Do you know the secrets behind these most important sacred geometric shapes? If you want to know EXACTLY what they mean google the documentary THRIVE a high production value documentary created by the son of the founder of Procter & Gamble.
From the album of geometric and perspective drawings (Codex Guelf 74. 1. Aug. fol.) from the 1500s (anonymous paper manuscript), from the Herzog August Bibliothek in Wolfenbüttel, via BibliOdyssey.blogspot.com