Spiral galaxies, hydrothermal systems, animals, ecosystems, oceanic currents and tides, hurricanes, civilizations, political systems, economies, and war are some of the many examples of emergent phenomena, in which low-level rules give rise to higher-level complexity.
Ochre and earth pigment are situated at the nexus of huge elemental cycles, a gazillion years of outer space galaxy creation, a few billion years of geological and biological growth on (and of) Earth, and several hundred thousand recent years of human evolution.