The content of Du Fu's "Happy Rain on a Spring Night": Good rain knows the season, and spring will happen. Sneaking into the night with the wind, moistening things silently. The wild paths are all dark with clouds, and the river boats are bright with fire. Look at the red and wet place at dawn, the flowers are heavy on the official city. Appreciation: It expresses the poet's joy. Although there is no word "happy" in the article, the author's joy is everywhere. "Joyful Rain on a Spring Night" expresses the poet's love and praise for the quality of selfless dedication of the drizzle on a spring night.
The poem not only touches the night and spring, but also expresses the noble character of the typical spring rain, that is, the "good rain", and expresses the poet's noble personality, which is also the noble personality of all "good people".