Literature Reference: 谁知大炉下，还有不然灰。—— 《将赴东都上李相公》 Who knows that beneath the great furnace, there are still ashes that do not burn. Source from 'Jiang Fu Dong Du Shang Li Xiang Gong'.
然: Affirmation and Promise. Herein lies a symbol of abundance, with wisdom in ample supply, venture forth with great auspiciousness.
灰: Dust and ashes, remnants of the past, silent witnesses to the ebb and flow of time.
Meaning: Despite the trials, there is still unextinguished hope and resilience.