There are many answers to that question. The shortest is that it’s the best way of telling the truth; it’s a process of producing grand, beautiful, well-ordered lies that tell more truth than any assemblage of facts. Beyond that, literature is many things, such as delight in, and play with, language; also, a curiously intimate way of communicating with people whom you will never meet. And being a writer gives you a sense of historical community, which I feel rather weakly as a normal social being living in early twenty-first-century Britain. For example, I don’t feel any particular ties with the world of Queen Victoria, or the participants of the Civil War or the Wars of the Roses, but I do feel a very particular tie to various writers and artists who are contemporaneous with those periods and events.
Julian Barnes, on the question, Qu’est-ce que la littérature?