When Ven had first heard from Sora and Roxas that they didn't have masters, he'd been very shocked. How could any of this work if you didn't have a master? He wasn't any closer to answering that question, but he wasn't arguing about it, either.

"Well... like that. A master finds you, and they can sort of sense if you can use the Keyblade, because most people can't. And then they perform the Ceremony on you so the Keyblade is passed on, and after that they take you in and start training you. And after enough training, you take the Mark of Mastery Exam, and if you pass that then you're a Master." And he smiled, remembering sitting on the window sill in Cinderella's room, talking about his dreams with Jaq. "That's gonna be all three of us someday."