Patterns resembling the yin-yang symbol do appear in nature, though as structural similarities

 Patterns resembling the yin-yang symbol do appear in nature, though as structural similarities, not symbolic ones. Typical examples include the Fujiwhara effect between typhoons, counter-rotating vortex pairs in fluids, and spiral waves or whirlpools on water surfaces. These phenomena create mirror-symmetric rotations and contrasts of light, darkness, inner, and outer regions, producing a visually “yin-yang-like” form. Interference fringes and optical wave intensity patterns show similar effects. In essence, nature doesn’t deliberately draw yin and yang—rather, universal patterns of vortices, spirals, symmetry, and interference are perceived by humans as yin-yang shapes.