What are the two main features of Du Fu in Delighting in Rain on a Spring Night? Why?

Capturing and describing the details of poetry can also show the superiority of poetry in observing things and feelings. "Sneak into the night with the wind and moisten things silently." The word "latent" is personified, imitating the silent and invisible modality of spring rain, which is quite interesting and induces people's love for spring rain. The word "run" conveys the spirit, accurately and vividly writing the characteristics that spring rain moistens everything and moistens things silently. Both drawing shapes and expressions, and both shapes and feelings are well prepared, profound and unique. "Flowers are more important than Jinguan City", with the word "heavy", accurately wrote the pattern that flowers in Jinguan City were red and full of vitality after being baptized and nourished by a night of spring rain, and conveyed the author's praise for the spring rain. "All the clouds in the wild trail are black, and the boats in the river are bright" captures the typical details and depicts them carefully, subtly and vividly rendering the hazy and colorful atmosphere of the spring rain. In a word, Du Fu's Delighting in Rain on a Spring Night embodies the superiority of observing other things' feelings and nuances in tempering sentences, capturing images and describing details. By comparing and appreciating Du Fu's poems with his gloomy style, we will certainly deeply understand another life interest in Du Fu's poems.