The pass is cold in August, and cicadas sing and mulberry sparse. Go through the gate, come back, and along the road, there is nothing but yellow reeds and grass. "These four sentences are written in frontier fortress autumn scenery, which is infinitely desolate and infinitely sad. Chilling cicada, mulberry forest, Xiao Guan, frontier fortress and autumn grass are all synonymous with sadness in China's ancient poetry images. This poem, with the background of deliberately describing the cold autumn scenery, paves the way for the later anti-war theme. I am deeply sympathetic to writing about guarding the border and recruiting people. "Heroes come to the monarch and soldiers are all dusty and old", which is similar to William Wang's "Drunk in the battlefield, you don't laugh, there were several wars in ancient times". Youzhou and Bingzhou are both frontier places in the Tang Dynasty, and they are also places where many literati pursue fame and fortune, such as "fame only comes from immediately" and "a centurion is not as good as a scholar". However, what the poet sees from these ambitious young people is the helpless ending of "all dust is old". The last two sentences deeply express the author's aversion to war and longing for a peaceful life by satirizing the so-called ranger who relies on bravery, shows off bravery, throws his weight around, and even makes trouble and disturbs the people. I said that the author didn't have any derogatory meaning when I talked about the quiet guest in front. Between the lines, I can vaguely see my regret for those brave people who devoted themselves to the battlefield. Using "ranger" to describe street hooligans who only boast that they have good horses, the author's anti-war sentiment has a deeper expression.
This poem was written by frontier fortress autumn scenery, with a generous and sad Jian 'an legacy; Writing about guarding the border and recruiting talents also has the sadness of Han Yuefu; "Ranger" allegorically shows the grandiose atmosphere of young people in the Tang Dynasty.