Ever watch a movie, play a game, read a book where someone whips out a “Secret Art?” The unknown spell, the forbidden magic, the forgotten technology? At that point you pretty much know Things Will Get Real (or the writer is about to yank something out of their hindquarters, but let’s stay positive here).
Secret Arts are a constant of fiction. There’s this idea that there are hidden powers, things forgotten or wisely locked away, ancient secrets more powerful due to their primordial connections, and so on. The idea of a Secret Art speaks to us, of something powerful and coherent – yet mysterious. It can’t be common or easy, and that too is part of it’s power.
And in your career, there are plenty of Secret Arts you can use.