Literature Reference: 商叶堕干雨，秋衣卧单云。—— 《秋怀 五》 Leaves fall in the dry rain, and the autumn clothes lie under the solitary clouds. Source from 'Autumn Reflections V'.
单: Delicate, pure, and unadorned. Here it refers to the virtuous character or graceful appearance of a person.
云: White clouds, soaring high in the sky. In names, it often symbolizes lofty aspirations, propelling one's career to greater heights.
Meaning: A solitary cloud symbolizes loneliness and purity, standing alone and untainted in the autumn sky.