Word origin · etymology
English translation of Chinese tǔ, 土.
Earth here means soil or ground. Phase distinguishes this traditional category-name from the planet Earth.
Stanford Encyclopedia of Philosophy: Religious Daoism, five-agent names ↗
How we know · epistemology
Stability symbolism and phase convention
Wu/Ji are phase labels derived from the chart. Earth here is neither the planet nor soil, and does not establish psychological stability.
Joey Yap: Five Phases and the ten Day Masters (practitioner account) ↗Hong Kong Observatory: Heavenly Stems and Earthly Branches ↗
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