The Golden Rectangle, the Golden Triangle, and the Golden Pyramid, all based on the Golden Ratio are all appear prominent in the work of Leonardo Da Vinci. He referred to the Golden Ratio as the "divine proportion".
Are Spirals a Sign of a Sacred Design? The Golden Spiral plays a harmonizing role in the Universe. It represents two well known shapes in sacred geometry: the golden mean or golden ratio (phi) spiral and the Fibonacci spiral.