Literary Devices in Birches
Blank verse: Frost composed “Birches” in blank verse—unrhymed iambic pentameter. It extends for 160 lines without any stanza breaks. This continuous, often enjambed structure gives the poem a flowing, prose-like form in certain sections. This allows the poem to imitate the internal dialogue so central to its unfolding narrative. It also gives the poem an unrelenting quality that also has a thematic significance: just as the speaker cannot suspend time in his desire for transcendence, readers cannot suspend the poem’s riparian surge.