What role does a conclusion play in an essay?

The conclusion of an essay serves a vital purpose by summarizing the main points discussed throughout the text and providing closure to the reader. This encapsulation helps reinforce the key arguments and insights presented, allowing readers to reflect on what they've learned. By reminding readers of the essential elements of the essay, the conclusion reinforces the writer's thesis and underscores the significance of the discussion.

Additionally, a strong conclusion often leaves the audience with a final thought or call to action, providing a sense of completeness. This is crucial because it ensures that the reader walks away with a clear understanding of the main argument and its implications. In contrast, introducing new ideas and evidence or critiquing viewpoints would disrupt the intent of a conclusion, as such actions could confuse the reader or suggest that the discussion is still ongoing.