Digging for black gold, saving Yang is meaningful.
Fire revived spring, and the burning stove shone all night.
Ding yiyuan, with his strength, pays attention to the stone after his death.
I hope that all people will warm their hearts and go out of the mountains tirelessly.
The first four sentences describe the image of coal and describe its life. The last four sentences express the poet's feelings of serving the country and the people, and do his best. The whole poem uses things to describe people and express his aspirations. The poet cares about the country and the people all his life and takes rejuvenating the country as his own responsibility. His ambition is clearly pointed out in the last four sentences, especially his ambition of sacrificing himself for the public. Synthesizing the whole poem, the poet expressed such an ambition in the poem: iron.