Comparative phrases are constructions that highlight the difference or similarity between two entities, often using comparative adjectives or adverbs. In literary texts, these phrases serve to enhance descriptions, create contrasts, and build emotional resonance, which is evident in the works of Vergil, particularly in the Aeneid. They play a significant role in the narrative by drawing attention to the qualities of characters, settings, and situations, and can help convey deeper meanings within the text.