About the author: Jia Dao (779 ~ 843), a poet in Tang Dynasty, was born in Langxian County. Han nationality, a native of Fanyang County, Youzhou, Hebei Province (now Zhuozhou City, Hebei Province) in the Tang Dynasty. He became a monk in his early years and had no name. Self-named "Jieshishan people". It is said that when he was in Luoyang, he was forbidden to go out in the afternoon because of an order at that time. Jia Dao complained about writing poems and was discovered by Han Yu. Later, he was taught by Han Yu to take the imperial examination, but failed to win the first place. Tang Wenzong was excluded and demoted as the main book of the Yangtze River. At the beginning of Huichang, Tang Wuzong was transferred from Sicang, Zhou Pu to a family, but he didn't die of illness.

Writing background:

With the tone of swordsman, the poet tries to portray the images of "sword" and "swordsman", express his ambition and express his political ambition of promoting the advantages and eliminating the disadvantages.

What kind of sword is this? "It takes ten years to sharpen a sword", which was carefully honed by the swordsman in ten years. The profile shows that this sword is extraordinary. Then, be positive: "Frostblade has never tried." Write this sword, Bai Rushuang, with cold light. It's an extremely sharp sword that hasn't been sharpened. To say "I haven't tried" is to be eager to try. Now I'm going to meet a "gentleman" who knows virtue and good deeds, so I confidently say, "Let you see who is unfair today?" Take this sword out for you today, and tell me, who has grievances in the world? A kind of ambition and lofty sentiments eager to display their talents and do something.

Obviously, "swordsman" is a poet's metaphor, and "sword" is a metaphor for one's own talent. The poet did not describe his ten-year career of studying hard at a cold window, nor did he express his outstanding talent and grand ideal. But through clever artistic conception, I integrate my thoughts into the images of "sword" and "swordsman". This way of expressing political ambition with vivid images is really ingenious.