These are the two lines at the end of the poem Tent. These two sections use the rhetorical method of transformation.
According to the needs of expression, in a certain language environment, the rhetorical method of temporarily changing the part of speech of a certain type of word into another type of word is called conversion. Substitution can make the language lively, humorous, subtle and concise, and also make the sentence patterns neat and symmetrical, and enhance the expression effect of the language. According to the needs of expression, the part of speech of one kind of words is temporarily changed and flexibly applied to another kind of words in a certain language environment.
In poetry, "desolation" and "prosperity" are adjectives and antonyms to describe the environment. In fact, it took away a "desolate scene" and left a "prosperous scene". "Desolate scene" and "prosperous scene" are neutral phrases centered on nouns. The author flexibly uses noun phrases as adjectives here and uses the rhetorical method of transformation. Due to the use of this rhetorical method, this sentence is full of poetry, freshness, richer meaning, and the taste of chewing. The language is very novel and unique. Imagine if the author used the words "He took away a desolate scene" and "He left behind a bustling town street". Where is this sentence poetic? Its performance effect is quite different from the original.