Writing is acting on the page instead of the stage.
But the writer is the director. Or probably the co-director.
Each reader’s imagination and experience is the whole cast of actors in a production directed by the script set forth upon the page. Every read is a new production of the show. The readers are all co-directors too, interpreting the script and adding their own nuances to the story as they direct the cast of the actors of imagination to make the story what they want.