Why were there so many poems about mountains and rivers in the Eastern Jin Dynasty?

The Eastern Jin Dynasty was a period of economic prosperity and cultural prosperity. With the economic development of Jiangnan area, people began to pursue a natural and comfortable way of life. They had a strong interest in mountains, rivers and gardens, and also began to reflect this idea in literature. During the Eastern Jin Dynasty, many writers were deeply inspired by the natural beauty of the Jiangnan area, such as Tao Yuanming, Xie Lingyun, Wang Xizhi, etc. They advocated using nature as the main raw material to combine literature and nature, creating many poems and essays that reflected the natural beauty and rural life. In addition, during the Eastern Jin Dynasty, the political turmoil and social instability reduced the pressure on people's lives, which also promoted the pursuit and creation of landscape gardens. During this period, many writers integrated their emotions and thoughts into the landscape idyllic poems to express their yearning for nature and a better life. The reason why there were so many poems about landscape and countryside in the Eastern Jin Dynasty was due to the social background and the lifestyle people pursued.