Taiji, the "Supreme Ultimate" state of undifferentiated absolute and infinite potential is the oneness before duality; from here Yin and Yang originate. (Guide to the I Ching, China's most popular means of divination)
Sacred Geometry of the Nautilus Shell. The Chambered Nautilus is a living fossil that has survived in Earth’s oceans for the last 500 million years. Existing before there were fish, dinosaurs, or mammals, the Nautilus could grow up to six meters long.