Which of the following pairs of phrases likely refers to the same moment in the poem's timeline?

The pair "At last" and "finally" both indicate a sense of conclusion or arrival at a point after a prolonged period. They suggest that something has been anticipated and is now occurring, highlighting the end of a journey or process. In the context of a poem, these phrases likely refer to the same moment where a climax or resolution is reached, conveying a similar emotional weight and significance.

On the other hand, the other options indicate different moments in time. "In the end" and "at the beginning" clearly refer to opposing points in a timeline. "Soon after" and "before long" could imply events occurring in a sequence but do not necessarily pinpoint the same moment. Similarly, "Within a while" and "when" suggest different types of time references that do not synchronize in meaning.