The article begins with a word "good" praising "rain". In life, "goodness" is often used to praise people who do good deeds. Nowadays, "good" is used to praise rain, which has aroused the association of good people. Next, personify the rain and say it "knows the season" to meet the objective needs, right? Spring is the season when everything germinates and grows. As long as it rains, it begins to rain. Look how "good" it is!
The second couplet further shows the "good" of rain. Rain is "good" because it is timely and "moistens things silently". Spring rain usually moistens everything with gentle winds. However, there are exceptions. Sometimes it changes from rain to snow with the cold wind. Sometimes, it rains violently with strong winds. Although it rains in spring, it is not typical. It is impossible to get a "good" evaluation. Therefore, the "knowing season" of the first couplet is not enough to fully show the "good" of rain. It was not until the second couplet wrote a typical spring rain accompanied by gentle drizzle that the word "good" was implemented.
"Sneak into the night with the wind and moisten things silently." This is still anthropomorphic. The combination of "sneaking into the night" and "silence" not only shows that rain is a drizzle accompanied by the wind, but also shows that rain intends to "moisten things quietly" and has no intention of seeking "goodness" If it intends to seek "goodness", it will come during the day and create a little momentum for people to see and hear.
If the rain is so good, I hope it will be heavy enough and it will rain all night. If the rain clears up only for a while, it will be incomplete to "moisten things quietly" The poet grasped this point and wrote the third part. On a less gloomy night, the path is easier to see than the field, and the river is easier to distinguish than the shore. What about now? Looking around, we can see that "the wild trails are all black, and the rivers and boats are all bright." Only the lights on the boat are on. Besides, you can't even see the river and you can't tell the path clearly. The sky is covered with dark clouds and the ground is as black as clouds. Very good! It looks certain that it will rain until dawn.
Couplets write imaginary scenes. After such a "good rain" for one night, everything will be moist, prosperous and grow up. Among them, the flowers that best represent the spring scenery will bloom with the rain and be gorgeous. Wait until tomorrow morning to have a look! The whole Jinguan City (Chengdu) is a peanut tree, "red and wet", red and heavy, and merged into a sea of flowers. So, what about the seedlings in the field? What about the Woods on the mountain? Everything. Everything?
Pu Qilong said, "It's easier to write about the rain cutting into the night than to cut into the spring." This poem "Delighting in Rain on a Spring Night" not only cuts into the night and spring, but also writes the noble character of a typical spring rain, that is, "good rain", which shows the noble personality of the poet and all "good people".