Look at the image without judgment. Notice the symmetry. Is it radial (like a mandala) or linear (like the Fibonacci spiral)? Zoom in to 400% on your tablet or screen. Look for the "hidden" circles. In sacred geometry, every straight line implies a circle.
No article on Geometria Sacra is complete without Phi (approximately 1.618). This number appears everywhere: in the Parthenon, the Pyramids of Giza, the proportions of the human hand, and the nautilus shell. When a line is divided such that the ratio of the whole to the larger part equals the ratio of the larger part to the smaller, you achieve the "Golden Section." A high-quality Geometria Sacra PDF will always dedicate a chapter to constructing a Golden Rectangle. geometria sacra pdf