Literature Reference: Picking and picking the curled ears, my basket is not full. I sigh for my beloved, placing him on the great road. Climbing those rugged heights, my horse is weary. I will drink from that golden vessel, to ease my endless longing. Climbing that high ridge, my horse is worn. I will drink from that rhinoceros cup, to ease my endless sorrow. Climbing that stony hill, my horse is lame. My servant is exhausted, why do I sigh so! — From 'The Book of Songs, Xiaoya, Cai Wei'.