Blank verse is unrhymed iambic pentameter, meaning each line consists of 10 syllables with an alternating pattern of unstressed and stressed syllables. While the poem doesn't use rhyme, it does have a distinct rhythm that contributes to its overall tone and impact.
Here's a line from the poem to demonstrate the iambic pentameter:
> "I knew the world was built for two, not one."
The rhythm of the poem is vital in creating a sense of solemnity and gravitas. The absence of rhyme allows the poem's content and imagery to take center stage, further emphasizing the poem's exploration of love, loss, and the passage of time.