Literature Reference: Cicadas sing in the empty mulberry woods, August winds blow on the Xiaoguan road. Out and into the frontier, yellow reeds everywhere. Those from You and Bing regions all grow old with dust and sand. Do not imitate the wandering knights, boasting of their purple steeds. How quietly the leaves rustle, as the autumn wind rises over the Wei River. Source from 'Sai Xia Qu'.