Why write something if it will not change your life? Too high a standard? Not a chance.
Care deeply about your characters, the questions that affect them, the relationships, ideals, and treasure they gamble, and your reader will care. Writing a book takes time, a year or more, sometimes much more. At the end of that time when you turn around and look back at what you've been doing all of that time, you want to see your book in a window on Main Street, or your characters brought to life by actors on stage, or your screenplay moving people to laughter and tears in the cinema, right?
...if a story is important to you, it may be important to a lot of other people in the audience. And when you're done writing the story, no matter what else happens, you've changed your life.
John Truby - The ANATOMY OF STORY (2007)