Board Thread:Theories and Speculation/@comment-29769110-20170115161829/@comment-734582-20170118091617

Lorenzo.r.1st wrote: see, I remember Tobi's explanation about the brain-release-chakra thing, but I never heard it from anybody cannon that the ability is just there, available for the user, even when they lose the first and only source of said power.. see what I mean? if u can find me anybody in the manga, or anime that says that, ill obviously believe u, but before then, I don't think so.. there isn't anyone who directly says this. However, Tobirama's explanation makes it clear that the source of the power is the brain, not the eyes. Sharingan is a manifestation of that power. Since Madara used it without eyes, i think it's clear that Susanoo is thus a power of the brain, not the eyes. .