Why does geomantic omen say ugly soil is "wet soil"?

Ugliness is negative in the yin and yang of the earthly branch, but it means that the four seasons belong to the winter moon, and the winter moon is Haizi's ugly moon, and the ugliness is wet, so ugliness is said to be wet soil. In addition, the earthly branch contains heavenly stems and five elements, and the ugly soil contains heavenly stems and osmanthus water. These are all stipulated by the soil branch, and the ugly soil should be wet soil.