What means did Liu Zongyuan use to express his thoughts and feelings in Plum Rain?

Meiyu, that is, Huang Meiyu, is rainy when plums are ripe. Chu and Yue are the names of southern countries in the Western Zhou Dynasty and the Spring and Autumn Period. At this time, Zi Hou was demoted to Liuzhou secretariat. Liuzhou is in Guangxi, near the sea. The work expresses inner depression through gloomy solar terms. The first part is about the rainy season. Zhuan Xu wrote about the desolation of Liuzhou. You can hear the cries of apes at night, and you are awakened by the crows of chickens in the distance in the morning. It is said that there are few people here. Worry and dreams are the portrayal of the poet's frustrated mentality. The weather scene written by the Necklace is hazy and gloomy, which just symbolizes the poet's situation at this time. Lu Ji's poem: "Luo Jing is dusty, plain clothes turns to dust", and Xie Tiao's poem: "Who can stay in Luo Jing for a long time, and the dust stains plain clothes". Plum, black, plain and white. Literally, the white clothes turned black, but it was not the dust in Beijing, but the climate in the border town. The implication is that there is no place in Beijing from now on-how slim the political future is, how can it not be worrying?

Liu Zongyuan Meiyu

Myrica rubra fruit set is rainy, the sky is vast and boundless, and the time is only late spring.

I am so worried that I can't sleep at night. Monkeys cry at night, and good dreams easily wake chickens.

Rain and fog spread from a corner of the sea to the end of the Antarctic, and Jiang Tao flooded the ferry from the north with a bang.

White clothes are dyed by plum rains in the south of the Yangtze River, but not by the dust in Beijing.