Aristotle defined catharsis as tragedy's ultimate effect. In poetry, it functions as the release of pent-up emotion, leading to clarity or renewal. Poetic imagery and narrative can evoke intense feelings, which when resolved, offer relief and insight. This process is central to dramatic and lyric poetry, enabling a transformative experience for the reader, connecting individual emotion to universal human patterns.

Catharsis, as defined by Aristotle in his "Poetics," is the emotional purgation or purification that the audience experiences through tragedy, specifically through the feelings of pity and fear. This release is not just an emotional discharge but a profound learning experience that leaves the viewer feeling cleansed and clarified. In poetry, catharsis is achieved through the powerful evocation of emotion, often through vivid imagery, intense narrative, and dramatic resolution. A powerful elegy, for example, can lead the reader through grief to a state of acceptance. For poets, creating catharsis involves building emotional tension and then offering a release, whether through a final image, a change in tone, or a thematic resolution. This concept is related to the sublime and is a primary function of tragic and lyric poetry, connecting the individual reader's emotions to a broader, universal human experience.