From the farthest reaches of the cosmos to the atomic structure of a single cell within the body, the same laws of form and mathematics apply. The secret to life is in these forms and numbers. So by studying a simple flower for example, we can learn the basis of all life everywhere.
Geometric ratios, and geometric figures were often employed in the design of Egyptian, ancient Indian, Greek and Roman architecture. Medieval European cathedrals also incorporated symbolic geometry. Indian and Himalayan spiritual communities often constructed temples and fortifications on design plans of the mandala and yantra. Many of the sacred geometry principles of the human body and of ancient architecture have been compiled into the Vitruvian Man, drawing by Leonardo Da Vinci.