Literature Reference: 衰颜欲付紫金丹。—— 《将赴成都草堂途中有作先寄严郑公五首 四》 My aged face longs for the elixir of immortality, the Purple Gold Pill. Source from 'Five Poems Before Departing for Chengdu's Thatched Cottage, Sent to Duke Yan Zheng'.
紫: Represents a person of authority and prestige.
金: Gold, the precious metal. Symbolizes the prosperity of wealth and abundance.
Meaning: Purple gold symbolizes nobility, eternity, and extraordinary achievements, often expressing aspirations for longevity, health, and excellence.