Thread:Epzilon/@comment-5651818-20140407235926/@comment-2089817-20140408023931

In Sei's case, he focused on Hakuda because relying on his Zanpakuto was allowing Hanullim's inner spirit to tamper with his consciousness, personality, and mental faculties. Hakuda is an art of self-control and self-mastery, and he focused on that to avoid allowing Hanullim to screw with him even more, since that is how his personality as a Zanpakuto is.