At the end,: 自分 achieves [The Boundless Wave] state
Self-Guidance:: 自分 guides his own soul to his Dao
In the final clash, 自分 learns from 相手's essence that even if the form changes, the essence doesn't—thus, 自分 transcends 相手 by becoming [Formless Infinity], his sword becoming one w/ him
Further emphasizing his newly enlightened mind, 自分 immediately grasps 相手's entire essence as 自分 transcends both himself & 相手, finally becoming [The Boundless Wave] as he grasps the fate to absolute victory