What ancient poems used water to express sadness?

How much sadness can you have? Like a river flowing eastward. -Li Yu "When is the Spring Flower and Autumn Moon?

There is no way to go because of the winding water flow in the mountains, and a mountain village suddenly appears in the willow-green flower bay. -a tour of Shanxi village by land.

Sometimes go to the end of the water to seek the source, or sit and watch the ever-changing clouds rise. -Wang Wei's "My retreat in Zhongnanshan"

Old vines are faint crows, small bridges are flowing, and old roads are thin horses. -Ma Zhiyuan's "Tianjingsha Qiu Si"

Two or three peach blossoms outside the bamboo forest and ducks in the water first noticed the warm spring. -Su Shi's "Hui Chong Chunjiang Night Scene"

How can the canal be so clear? Because there is inexhaustible living water for it. -Zhu, "Two thoughts on reading in the living water pavilion (I)"