Holly Lisle said this quote

Fiction---good fiction, anyway---is dream made flesh, given purpose and drive, and set on a quest to show us the best in us and to give us the power and the tools to dream beyond reality's 'merely good enough' to a vision of what is truly great......and then to give us the stories of men and women of character who in turn inspire those of us who dare to reach for the truly great within ourselves.THAT is why you write fiction.