If Yushan didn't see her, it would be Yaochi meeting under the moon.
"Clouds want clothes and flowers want capacity" means that the poet thinks that clouds want to match Yang Guifei's clothes and flowers want to match Yang Guifei's appearance, which is the beauty of Yang's clothes and appearance. The use of "Xiang" is quite ingenious and full of tension. It depicts Yang Guifei's beautiful face and noble position with personification, exaggeration and imagination. In addition, this poem has its own merits, and the pen is smart and economical.