Analyzing Word Choice in Literary Analysis

Read the following excerpt from a literary analysis:

"The poet employed a palette of sorrowful tones, allowing the reader to sense the weight of grief woven through each verse. By choosing words that resonate with a haunting beauty, the poet captures the essence of despair, transforming raw emotion into art that lingers long after the final line. This deliberate word choice establishes a profound connection between the poet and the audience, inviting them to explore their own experiences with loss."

In this analysis, which word most significantly underscores the author's perspective on the poem's impact?