Early spring means member Zhang of the Ministry of Water Resources.

I gave a poem to Zhang Shiba in early spring. I hope that member Zhang Shiba will not be in Beijing all the time, but can invite him out to see this wonderful time in early spring. "Early Spring Rain", also known as "Eighteen Members of the Early Spring Water Donation Department", was written by Han Yu. This is a seven-character quatrain that describes and praises the beauty of early spring. The first sentence points out the light rain in early spring, and describes it as smooth and moist with "moist as crisp", which accurately captures its characteristics. The sentence is fresh and beautiful. There is also Du Fu's "Good rain knows the season, when spring comes." Sneaking into the night with the wind, moistening things silently "has the same effect." This work was written in the early spring of 823 AD (the third year of Changqing). At that time, Han Yu was 56 years old and served as assistant minister of the official department. This is the biggest official he has ever been in his life. Although it was not long (he died at the age of 57), he was in a good mood at this time. Not long ago, there was a rebellion in Zhou Zhen (now Zhengding, Hebei Province), and Han Yu was ordered to go to Fu Xuan to surrender the rebellion. Emperor Mu Zong was very happy. He was promoted from assistant minister of the Ministry of War to assistant minister of the official department. In literature, he has long been famous. At the same time, he also made achievements in reviving Confucianism. Therefore, although the year is approaching, we are not sad because of the years, but welcome spring with great interest. This poem was written to Zhang Ji, a poet who worked in the Ministry of Water Resources at that time. Ranked eighteenth among brothers, so it is called "Zhang Eighteen". Han Yu invited Zhang Jichun to travel, but Zhang Ji refused because he was busy with his old age. Han Yu then wrote this poem as a gift, expressing the beauty of the early spring scenery, hoping to arouse Zhang Ji's interest in travel.