My chi manipulation is largely self-taught. [Hakkai's reply is matter-of-fact, because it's leading into a more important question. If Caster can detect such minute details of Chikusa's energy flow -- more than Hakkai would be able to at his most precise -- he must be much better trained.

And so:]

Do you think that's something he might be taught to control? Or alter?

[Because if Chikusa's energy is unbalanced in a way that's contributing to his lethargy and insensitivity, it needs to be addressed, and Hakkai can admit he's nowhere near enough of an expert to be his teacher in that.]