Catharsis in Aristotle's Poetics: What the Word Means

In Aristotle's Poetics, catharsis is what tragedy does to audiences through pity and fear. Scholars still debate whether it means purging, purifying or clarifying.

Category: Literary Analysis · Created: 2026-10-15 · Updated: 2026-10-15 · 3 min read

Catharsis is the central term in Aristotle's definition of tragedy in the Poetics, a treatise written in the fourth century BCE. Aristotle says that tragedy, working through pity and fear, brings about a catharsis of those emotions. The Greek word means cleansing or purging, and it has been read as a medical, moral or intellectual idea. Scholars still disagree about what Aristotle meant, and whether the effect lies in the audience, the play or both.

What does Aristotle say tragedy does?

In the sixth chapter of the Poetics, Aristotle defines tragedy as the imitation of a serious, complete action of a certain size, performed in language with pleasing ornament. Through pity and fear, it achieves the catharsis of such emotions. He names six parts of tragedy: plot, character, thought, diction, song and spectacle. He ranks plot highest, because the arrangement of events matters more than the staging. He also asks that the plot be unified, with a single action that has a beginning, middle and end, rather than a string of loosely linked episodes.

The ideal plot has a reversal, in which the action turns to its opposite, and a recognition, in which a character learns who they are or what they have done. In Sophocles' Oedipus Rex, Oedipus discovers that he has killed his father and married his mother, and that discovery combines both.

Why do pity and fear matter?

Aristotle says pity is aroused by misfortune that the sufferer does not deserve, and fear by misfortune that falls on someone like ourselves. This is why the tragic hero is neither a villain nor a perfect person. Aristotle's ideal example involves someone who acts in ignorance and then discovers the truth, which is why the audience pities him rather than despises him. His downfall follows from a mistake or flaw, which Aristotle calls hamartia. The word has been argued over ever since, because it can mean an error of judgment, a moral failing or a simple mistake about facts.

Plato had argued in the Republic that poetry feeds the emotions and should be restricted. Aristotle's concept can be read as a reply: strong feelings, aroused inside a shaped story, can be worked through rather than merely indulged. The Stoics took a different path, aiming to remove strong emotions altogether, as described in Stoicism.

Is catharsis a kind of pleasure?

Aristotle says that the pleasure a tragic poet should provide is the pleasure that comes from pity and fear, shaped through imitation. He also argues that a tragedy can move its audience even when the story is only told rather than staged, though a performance can add to it. For him, the emotion is not a side effect. It is the point of the form. The experience is painful yet pleasurable, a tension that Aristotle does not fully resolve, and that is one reason the passage is still argued over.

What do scholars disagree about?

Aristotle's word is ambiguous, and three main readings have been proposed.

Purgation: the audience discharges pity and fear, following the Greek medical sense of katharsis.
Purification: the emotions are refined and brought to a proper measure, rather than removed.
Clarification: the audience gains understanding of human action, and the emotions settle into that understanding.

Each reading fits some of the text better than others, and the debate has run for centuries. Readers often combine them.

How has catharsis been used since?

In 1895, Josef Breuer and Sigmund Freud described a cathartic method, in which patients talked through traumatic memories and their symptoms eased. The model of released pressure behind it was later abandoned by much of psychology, although the word stayed in everyday use.

Experiments on venting anger have found that it tends to increase aggression rather than reduce it, which casts doubt on the idea that feelings drain away once expressed. Readers still speak of catharsis when a story leaves them relieved after grief or fear. How a story steers those feelings is studied in unreliable narrators and in the shape of the hero's journey.