Divination or prophecy derived from the pattern made when earth is thrown down onto the ground, or lines drawn in the dirt: Geomancy is a foretelling or prediction by scattering pebbles, dust, sand grains, or seeds on the ground and interpreting their shapes and positions.

Geomancy includes making marks on the ground with a stick (now with a pencil or pen on paper).

Geomancy is still important by modern-day Chinese in Hong Kong and other places before construction of a building takes place.