Literature Reference: 徐关深水府，碣石小秋毫。—— 《临邑舍弟书至苦雨黄河泛溢隄防之患簿领所忧因寄此诗用宽其意》 Xu Pass is deep in the water mansion, while Jieshi is as small as a fine autumn hair. Source from 'Linyi Shedi Shu Zhi Kuyu Huanghe Fan Yi Difang Zhi Huan Buling Suo You Yin Ji Ci Shi Yong Kuan Qi Yi'.
徐: The surname "Xu Xu" in Chinese names often symbolizes the gradual and orderly arrival of success, embodying a sense of steady and unhurried progress.
关: Care and concern, symbolizing family harmony and mutual support.
Meaning: Xu Pass conveys profound meaning, symbolizing stability and protection, evoking a sense of security and trust.