Shùn rì yáo nián n, an idiom in China, is pinyin, which means it was originally used to praise the emperor's virtue. Later, it was also a metaphor for when the world was at peace. From the four seasons, white ugliness songs spring, white ugliness. The idiom comes from Yue's Four Seasons White Ugliness Song Spring White Ugliness: "Admire Yao grass in the United States, and enjoy the music at sunset." .