Passion is what you would do if you got to choose. It's what you think about doing in the privacy of your own mind, without ear of dismissal or mockery.
This fear is one of the horrors of an author's life. Where does work come from? What chance, what small episode will start the chain of creation? I once wrote a story about a writer who could not write anymore, and my friend Tennessee Williams said, 'How could you dare write that story, it's the most frightening work I have ever read. ' I was pretty well sunk while I was writing it.