Board Thread:Speculation House/@comment-11188061-20131214014011/@comment-16774229-20131214063657

Zolnir wrote:

Also, with mention of Pyrrha's quote when she released Jaune's Aura, it is possible that there are souls that act as a judge to a person's actions and enhance their Aura when they've overcome a certain wall.

And of course, it's also possible that their past selves - the people they were in the past, memories and everything all etched within the same soul - are the judge. I think this is how it works. If people are reincarnated, then when people expect growth, they're discovering who they truly are. And it only makes sense that greater understanding of one's own soul allows one greater control over the power it grants.