Literature Reference: 南宗尚许通方便，何处心中更有经？—— 《赠成都僧》 李章武 The Southern School allows convenience, where else in the heart is there more scripture? Source from 'Zeng Chengdu Seng' by Li Zhangwu.
尚: Veneration, nobility.
许: "Consent and approval. A character that signifies the ease of achieving great endeavors and is auspicious for future matrimony."
Meaning: Shang Xu signifies reverence and permission, embodying a tolerant and open-minded attitude.