The poem comes from Wang Changling's "Seven Books on the Art of War, Part IV" in the Tang Dynasty. The full text is as follows:
There is a dark snow-capped mountain in Qinghai, with long white clouds and a lonely city looking at Yumenguan.
Yellow sand wears golden armor in hundreds of battles, but the loulan is not returned.
Extended data:
Wang Changling (698-757), a native of Jinyang, Hedong (now Taiyuan, Shanxi) and Chang 'an, Jingzhao (now xi 'an), was a famous frontier poet in the Tang Dynasty.
There are 18 1 poems in Wang Changling. The genre is mainly composed of five ancient poems and seven quatrains, and the themes are mainly parting, frontier fortress and palace resentment.
His frontier poems are vigorous and powerful, with high style and full of positive spirit.
His poems are generous in emotion, rich in atmosphere and rich in artistic conception, and often take the form of seven-character poems and seven-character quatrains.
It expresses the unique momentum of the prosperous Tang Dynasty and represents a prosperous Tang Dynasty.
References:
Baidu Encyclopedia-Wang Changling