Literature Reference: When nine oxen shed a single hair, it marks a time of transformation. Source from 'Seeing Off Wei Chulao, the Remonstrance Official Returning to Court After Completing His Sick Leave in Luozhong'.
一: To signify the beginning, to embody the entirety, and to represent the pinnacle of excellence and perfection.
毛: Mao Li, or the brush pen, refers to the filamentous growth on the skin of animals and plants. It also denotes objects that resemble hair.
Meaning: A single hair symbolizes the subtle yet significant, representing how even the smallest force or change can trigger profound effects.