Board Thread:Off Topic/@comment-25396609-20160319212213/@comment-26397825-20160323030132

I'm fairly certain they make mentions of it being like a muscle; the more you excersise it, the more you have. Or maybe I'm thinking of semblances...

I've always worked on that aura is like a muscle, kind of like chakra. You can increase your pool, though it may be difficult to do so and increasing the amount without pratcising control just makes you sort of backslide in terms of how much aura is put into things like those force shields and aura slashes we've seen them do.