What is used in poetry as a relevant comparison to show similarities?

The correct answer is analogy, as it specifically refers to a comparison between two different things that highlights their similarities. Analogies are often employed in poetry to illustrate complex ideas or emotions by drawing parallels to something more familiar or relatable. This makes abstract concepts more tangible and understandable, allowing readers to grasp deeper meanings within the poem.

Imagery, while a vital component of poetry, focuses on creating vivid pictures or sensory experiences in the reader’s mind rather than making comparisons. Allusion refers to an indirect reference to a person, event, or literary work, which can add layers of meaning but is not primarily about drawing comparisons. Symbolism involves using objects or elements to represent larger ideas or themes, yet it does not inherently explore similarities between disparate concepts. Thus, analogy is distinctively suited for demonstrating similarities in poetry.