Yunlang comes from the poem "The sky is bright and the clouds are hidden, and the three lights are bright and mirrored in all directions". The source of "Yunlang": The sky is bright and the clouds are hidden, and the three lights are bright and mirrors are everywhere - Jiu Si - Chu Ci "Yunlang" was chosen from the Chu Ci, meaning the clouds are bright and the wind is clear. Jiangnan Yilin believes that "Yunlang" is suitable as a name for a baby boy, which means that the baby is humble, open-minded, personable, has a calm and calm temperament, and can live a confident and optimistic life.