Once upon a time, I was at karate class just minding my own business, when a 10-year-old girl wearing a blue belt walks up to me with a question. I’d been a black belt for some time, so this was not an unusual occurrence. I was expecting for her to ask for help with her kata or how to do roundhouse kicks or something like that. Instead, she asks me simply, “Sensei, what’s a Jedi mind trick?”