Quote Originally Posted by BRC View Post
I certainly do not recall any explanations.
Okay maybe not a good explanation, but still.

Quote Originally Posted by Ninja Chocobo View Post
Skilled user of the "Ripple" martial art (a.k.a. Hamon, a.k.a. Sendô), which is based around a breathing technique which creates 'ripples' within one's bloodstream. These 'ripples' can be channeled through the martial artist's strikes into various forms of physical waves, or maintained as ripples, healing and/or strengthening certain materials. Also grants the user increased endurance and longevity.