There’s a rumor in the martial world. It is said that there’s a kind of martial art—once you reach the ninth level, a dragon pattern appears on your back. That is the mark of the true Dragon Emperor. So many young people, for that dragon pattern, train obsessively. Later, a masseur stood up and said, “Don’t train—that isn’t a dragon pattern; it’s a kidney-deficiency pattern.” The martial world was in an uproar. All the major sects held meetings overnight. Shaolin said, “Our disciples sit in meditation for too long, and the patterns on their backs are the most—could it be that everyone is kidney-deficient?”