Incase you have no idea what this topic is about, you can freshen up on this article: http://bulbapedia.bulbagarden.net/wiki/Aura
So basically it is the life force of all living organisms right? These organisms can even harness their Aura and attack with them. We've also seen many amazing things Pokemon can do, like a little squirtle being able to fire out so much water. My theory is that, what if all these elemental moves are derived from Aura?
I have some theories about this, but I want to see what other people think first.