If you can’t explain it, you don’t really get it.
What does this have to do with fly fishing? Think of it this way: Can you explain the basic mechanics of a cast? Could you give a quick overview of why the feeding behavior of fish changes with the weather? Why should I buy a medium-action fly rod over a fast one… or vice-versa?
You don’t need to be an expert to know how to fish or, more importantly, enjoy how to fish. But learning how to communicate fly fishing might be one of the best ways to learn how to fly fish better.