A river of water protects the fields and surrounds them with green, and two mountains are lined with gates to bring greenery.
Mountain -> Wu, Yuan -> Chi turns stillness into movement, water -> surrounds, mountain ->Sending is to turn silence into movement.
In Wang Wei's "Send Off the Second Envoy of the Yuan Dynasty to Anxi", "The city of Weicheng is light and dusty in the morning rain, and the guest house is green and the willows are new", showing a warm and fresh spring scenery. Uneasy and melancholy due to his experiences. It can be seen that the sad scene in Le Jing can better highlight the poet's sadness in bidding farewell to his friend and his concern and sympathy for his friend's life after he left Yangguan in the west without any friends.