Du Mu's poems. According to official website's Collected Poems, Du Mu's three-step poems satirized the extravagant desire of the high rulers at that time and their great indignation at the extravagance. The whole poem is implicit and euphemistic, which means primate. One is riding a princess in the world of mortals and laughing. No one knows it's litchi. The other is a dress on the Thousand Peaks, which came from the original dance. Third, Lushan Mountain dances clouds, and the wind is too heavy to laugh.