《太平广记·卷二·神仙二》
筵席上，西王母唱道： 天上飘着悠悠白云，道路啊漫长得无穷无尽。
王母谣曰： 白云在天，道里悠远。
At the banquet, Queen Mother of the West sang a song: There are white clouds floating leisurely in the sky, and the road is extremely long and endless.