The trolley in the poem is a symbolic image. He is the embodiment of a certain aspect of the profound disaster in the historical destiny of our Chinese nation. The "sorrow of the northern people" expressed by the poet with the help of a handcart also contains the sadness of the conservative, rigid and backward lifestyle. It is not only a quiet and sad protest by the poet against the creators of suffering, but also a philosophical inspiration for changing the lifestyle of the pushcart and invigorating the national spirit.
The whole article is divided into two parts:
1. Artistic rendering around the "sharp sound" of the trolley, echoing the "sadness" of the people in the North.
2. The layout is based on the "rut marks" left by the trolley, intertwined with the "sorrow" of the people in the North, and gives people a strong touch from hearing to vision.
The form of this poem is basically repeated in the arrangement of syllables and the creation of artistic conception (except for the differences in words, sentences and images). This unique simple repeated structure deepens the atmosphere and emotion of the poem