Literature Reference: 三献具举，九旗将旋。—— 《郊庙歌辞 享文敬太子庙乐章 送神》 Three offerings are presented, and the nine banners are about to turn. Source from 'Jiao Miao Ge Ci Xiang Wen Jing Tai Zi Miao Yue Zhang Song Shen'.
九: The largest single digit. In names, it signifies excellence and perseverance. The character "之" (zhī) is auspicious for career advancement.
旗: Smooth progress and triumph pave a favorable path for future advancements.
Meaning: The nine banners symbolize solemnity and nobility, representing dignity, prominence, and glory.