" Humans can balance on strange surfaces," Odrade said. "Even on unpredictable ones. It's called 'getting in tune.' Great musicians know it. Surfers I watched when I was a child on Gammu, they knew it. Some waves throw you but you're prepared for that. You climb back up and go at it once more. "

― Frank Herbert , Chapterhouse: Dune (Dune, #6)