Literature Reference: Natural and man-made, this principle is left for who to seek. Source from 'Hangzhou Guan Chao'.
禹:
The name of an ancient figure, embodying deep blessings, prosperity, and good fortune.
凿: Piercing, excavating. Chiseling through the wall to steal light.
Meaning: Yu Zao refers to the achievements of Yu the Great in water control, symbolizing wisdom and effort.