Literature Reference: 禹敷下土，方外九州。——《诗经·大雅·文王》 Yu spread the lands, encompassing the nine regions. Source from 'The Book of Songs - Da Ya - King Wen'.
尚: Veneration, nobility.
禹:
The name of an ancient figure, embodying deep blessings, prosperity, and good fortune.
Meaning: To admire Yu the Great, symbolizing wisdom, diligence, and the spirit of flood control.