Some readers will come away from [a] story knowing that dragons can be beaten. Others will come away convinced that wizards always find loopholes. Others will say that kings always find ways to take credit for other people’s work. Others may say the message is never to underestimate the damsel. And some, of course, will say the message is humans would rather kill an endangered species than learn how to live with them.
If the story is art, if the storyteller has done their job, the world of the story should be vivid enough and rich enough for readers to find see all of those sorts of things in the tale. Which is what you want. You want the reader to be transported into a world that they will experience and interpret themselves. You want the reader to share your vision, yes, but you want that vision to take on a life of its own and for the reader to find visions of their own.
–fontfolly on “message” fiction.