Under what circumstances were the four authors of this poem written?

11In the spring of 26th year (the first year of Song Qinzong Jingkang), the nomads from the Northern Song Dynasty broke through Kaifeng. Like most poets (such as Li Qingzhao) at the turn of the Northern Song Dynasty and the Southern Song Dynasty, Chen's life experience and literary creation are divided into two periods by the difficulty of Jing Kang. Before that, he took the usual path of becoming famous in official career. At the age of 24, he was awarded the position of scholar in113 years (three years in Song Huizong). He is good at painting and calligraphy and is famous for his poems. He was deeply appreciated by the emperor, and his official position changed repeatedly, but he was unconsciously involved in the whirlpool of political struggle. When the Jingkang disaster occurred, Chen was demoted to be a small official of Chen Liu (now southeast of Kaifeng, Henan Province) to be a wine tax supervisor, and naturally joined the ranks of refugees, and went south to Hunan, drifting from Hunan to Hunan and being displaced. He went into exile in Dongting Lake, boarded Yueyang Tower several times, mourned for the state with his friends, drank wine to drown his sorrows, and wrote several poems to commemorate his event. This poem is one of them.

Farewell to Jingmen Ferry was written by the poet when he left Shu and went to Jingmen to bid farewell to his hometown in 725 AD (the 13th year of Kaiyuan). The poet has been living in Sichuan since he was five years old, studying in Daitian, visiting Emei and living in seclusion in Qingcheng. This is the first time that the poet left his hometown and began to roam around the country, ready to realize his ideals and ambitions.

Cui Kaiyuan, our envoy to Hexi, defeated the Tubo in the 25th year (737). Emperor Xuanzong of the Tang Dynasty ordered Wang Wei to go to the fortress to comfort himself and visit the military situation. This is actually pushing Wang Wei out of court. This poem was written on the way to the border. The Ambassador to the Great Wall depicts the strange and magnificent scenery beyond the Great Wall, and shows the poet's praise for the patriotic spirit of the frontier guards who are brave in danger and lead the motherland. This poem is concise in narration and magnificent in picture.

Guiyuan Tianju lived in Jin for two years, that is, the year after Yuan and Ming bid farewell to Peng, the poet wrote five famous poems, Guiyuan Tianju, which was an ode for the poet to bid farewell to the old words and welcome the new year. The profound ideological changes and exquisite artistic skills it reflects not only attract the attention of scholars who have been studying Tao Yuanming, but also fascinate the vast number of ceramic poetry lovers.