History of the martial arts

"Using a law without prior knowledge of it?" Robin set aside the fact that martial arts could merge multiple laws, even soul units, and focused on this particular point.

What makes trainees what they are? It's their constant attempts to comprehend heavenly laws day and night, going into life-and-death seclusions hoping to grasp something that helps them build a solid foundation, extend their lifespan a bit, or improve their cultivation. Robin himself had faced the same struggle while trying to explore the Path of Truth.