I think you can tilt too far to the side of the story where the message is just simply entertainment. So I think your goal has to be to craft in one sentence what the truth is you are trying to convey. And then you find or create a story that you wrap around that truth.
Max LucadoTo see sin without grace is despair. To see grace without sin is arrogance. To see them in tandem is conversion.
Max Lucado