Huh? this is confusing so much
So much is at stake in writing a conclusion. This is, after all, your last chance to persuade your readers to your point of view, to impress yourself upon them as a writer and thinker. And the impression you create in your conclusion will shape the impression that stays with your readers after they've finished the essay.
Answer:
It allows the reader to imagine their own conclusions about what happened and opens up their imagination to a world of thoughts.
Hope that helps. x