1. Going to the theatre is a great way of taking in stories!
2. In your fictional world(s), how do your characters take in stories? Do they read? Do they have theatres/cinemas etc? What would they watch/read?
3. When you go to a performance like this, you go in knowing you are seeing a "pretence" but being willing to suspend disbelief. You focus on wanting to see how the story ends and enjoy the performances taking you to that point. The challenge for writers is hooking our readers quickly enough at the start of the story to achieve the same effect for the length of the tale, whether it is a flash piece or a trilogy of novels! So face the challenge! The key is in creating characters readers will want to follow through anything.