The frontier fortress is desolate and wonders. The smoke lit by the beacon tower is particularly eye-catching, so it is called "solitary smoke". A word "solitary" describes the monotony of the landscape, and a word "straight" behind it also shows its strength and perseverance. There are no mountains and trees in the desert, and the Yellow River flowing through it cannot express the poet's feelings unless a word "long" is used. Sunset, originally easy to give people a sentimental impression, uses the word "round" here, but gives people a feeling of warmth and boundless.
The word "circle" and "straight" not only accurately describes the desert scene, but also shows the author's deep affection. The poet skillfully blends his loneliness into the description of the vast natural scenery. A passage from the forty-eighth poem in A Dream of Red Mansions can be regarded as the superb artistic realm of these two poems.
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Creation background
In 736 AD (the 24th year of Emperor Xuanzong of the Tang Dynasty), Tubo sent troops to attack Xiao Bolu in the Tang Dynasty. In the spring of 737 A.D., Cui, the deputy envoy, went to Hexi Festival and defeated the Tibetan army in the west.
Emperor Xuanzong of the Tang Dynasty appointed Wang Weifeng Liangzhou as the censor, went out to the fortress to comfort himself and inspect the military situation, and served as our ambassador in Hexi, which actually pushed Wang Wei out of the court. This poem was written on the way to the fortress.