Literature Reference: 伫见征颖川，无为薄淮阳。—— 《唐开州文编远寄新赋累惠良药咏叹仰佩不觉斐然走笔代书聊书还荅》 Awaiting the expedition to Yingchuan, doing nothing trivial in Huaiyang. Source from 'Tang Kaizhou Wenbian Yuan Ji Xin Fu Lei Hui Liang Yao Yong Tan Yang Pei Bu Jue Fei Ran Zou Bi Dai Shu Liao Shu Huan Da'.
颖: Wise and distinguished.
川: The river flows ceaselessly. The character (字) is vast and potent, capable of triumphing over all things. It is the character of supreme fortune.
Meaning: Yingchuan signifies outstanding intelligence and wisdom, like an ever-flowing river.