A general practice before the big show. Nothing is more holy, more sacred than the performance. The show. The idea one puts in the heads of one's audiences. Behind that idea, there's countless hours of practice, of pain and struggle. Hours of learning. Thousands of small tips, tricks, hints, helpers, shortcuts and cheats. And none of that must be allowed to bleed through. Because the show is an illusion, and that illusion is an art to maintain. That illusion is what they want. The illusion of beauty, of flawless beauty.