It's kind of like something only Unohana can do. His memories of fighting are with her. He needs to get over his standard (Unohana was his standard) and he needs to understand that he must keep getting stronger.
Sweet and amazing. It's messed up, yet a very interesting and dark theory and it honestly amazes me! I never thought that anyone could combine a manga in such a way. Tite Kubo is a genius!