The new leaves in the forest urge the replacement of the old leaves, and the waves in front of the running water make way for the waves behind.
These two sentences, "The new leaves in Fanglin urge the old leaves, and the waves before flowing water make waves behind them", are written for the sadness of Bai Juyi's old friend, meaning that metabolism is a natural law, life and death are common, and there is no need to be sad-in spring, trees are forced to replace the old leaves with new leaves, rivers are rushing, and the waves behind them make waves move forward.
The poet got rid of the sentimental feelings of general mourning poems, and expressed his views on life and death through the description of the scenery, believing that life and death are inevitable laws, regardless of human will. Show a positive and diligent spirit. In vivid metaphors, there is a profound philosophy of caution, and these two sentences are usually used to describe the inevitability of the alternation of the old and the new.
Source: Yuxi, Liu Tang, "Lotte sees poetry and sorrow, and the three gentlemen are deeply divided."
Extended data:
Poetry appreciation
This is a work of mourning for the dead, which aroused infinite feelings for life.
The author of the first couplet read two quatrains sent by Bai Juyi, felt the death of his friend, and wrote a poem to express his feelings. Zhuan Xu wrote that when friends die, tributes naturally increase. The pain and helplessness of a friend's death and his loneliness are beyond words.
The necklace couplet "Fang Lin's new leaves urge Kerwin Chen, and the waves before flowing water make waves afterwards" is a famous sentence throughout the ages, which embodies Liu Yuxi's philosophical thought. In spring, everything recovers, and the new leaves in the forest urge the old leaves to change; In the rushing torrent, the waves in front give way to the waves behind.
Here, "Kerwin Chen" and "Qian Bo" can refer to dead friends such as Yuan Zhen and Er Cui, and can also refer to old things by extension; "New leaves" and "back waves" can refer to both new things and the younger generation.