At the end of the Warring States Period, Jing Ke went to the State of Qin to assassinate the King of Qin in order to avenge him. He bid farewell to the people who saw him off at Yishui and sang a solemn and stirring farewell song: "The wind blows and the water cools, and the strong man is gone forever!"
When Robin sent someone to leave Yishui, he naturally remembered Jing Ke's trip to Qin.
This poem is unique among farewell poems. The author didn't say a word to the people who were sent, nor did he speak his mind directly, but went straight to history hand in hand with the readers. After a tragic historical review, the words in the author's heart were understood by readers.
The author's life is full of troubles, and he is deeply dissatisfied with his own fate and the rule of Wu Zetian. He hopes to have the opportunity to do something for the restoration of the Li and Tang Dynasties. This poem combines the past and the present, expressing his uncontrollable anger and suggesting that he is as fearless of violence and dedicated to justice as Jing Ke. "The water is still cold today" emphasizes the author's concern for it.