The main idea of the whole poem is: the stones mined from the deep mountains, after thousands of chisels, are ordinary to fire; As long as you can leave your innocence in the world, you are not afraid of death. On the surface, this four-line poem is just a work of chanting things, that is, the poet uses the method of drawing lines to highlight the characteristics that lime is not afraid of collision, fire and giving people white powder. But after careful scrutiny, it is not difficult to see the poet's ingenuity-reciting things is actually expressing his will. That is to say, using personification and metonymy, with the help of lime, pun intended, I express my noble sentiment of being a clean and honest person forever on the road of life.
Yu Qian was deeply loved by the people for being an official and upright, rehabilitating unjust imprisonment and relieving famine. In Ming Yingzong, Walla invaded and Yingzong was captured. Yu Qian proposed the establishment of Jingdi, personally led the troops to stick to Beijing, repelled Vala, and rescued the people from the brutal rule of Mongolian nobles again. However, after the British Restoration, the national hero was falsely killed for "treason". This poem of lime can be said to be a true portrayal of Yu Qian's life and personality.