This article used a metaphor to explain the truth. Metaphor was a commonly used rhetorical device that emphasized the differences or similarities between two things by comparing them to express the author's point of view more deeply. In this article, the author emphasized the consequences of blind and unrealistic actions by comparing the idiom "poles apart" to the opposite of action and purpose. Through this metaphor, the author expressed an important truth: if our actions and goals are inconsistent with the actual situation, it will cause our actions to become unrealistic and even bring serious consequences. Therefore, we need to carefully think and plan to ensure that our actions and goals are realistic in order to achieve better results.