Literature Reference: 树老欲连云，竹深疑入洞。—— 《酬南园新亭宴会璩新第慰庆之作时任宾客》 Old trees stretch towards the clouds, while the deep bamboo seems to enter a cave. Source from 'Chou Nanyuan Xinting Yanhui Qu Xin Di Weiqing Zhi Zuo Shi Ren Binke'.
行: Proficient in a certain matter, it generally signifies smooth progress in all affairs, with the character "Zhi" carrying auspicious connotations.
深: Profound and enlightened, symbolizing depth of understanding and intelligent wisdom.
Meaning: Acting with depth and profound thought, symbolizing foresight and inner composure.