Board Thread:Questions and Answers/@comment-5780397-20151222190152/@comment-5780397-20151224185632

Aura is called life energy... and as for Razor's balls, that's not true. Bopobo's head did not explode, it was destroyed by the impact, at least in the manga. Plus, even if it had exploded, we know that Transmutation can be used to cause explosions. In regard to your theory, what produces that chemical energy? Why does it suddenly appear when aura is used? Even if you were right, Togashi surely hasn't planned to go that far in the mechanics of aura. I repeat, we don't have any proof in any direction, but from all we've read I think it's impossible for aura to have a mass, even though it's not a conventional form of energy either, more like a new one, which is capable of exerting or increasing a force even though it lacks a mass and volume.