Quote Originally Posted by Mr_Gyactus View Post
If we were only aether, what the point of bury a corpse (why are there corpses)? Or why did the scions need their bodies back?
Non-interchangable types of aether, apparently? Permanent corporeal aether and then "fuel aether" to power it and keep it alive?

We can only go on what the game tells us, and that is that both Krile and G'raha talk about feeling drained and hungry after spellcasting, and then we have Zero demonstrating that there's essentially no practical difference between direct-absorbing aether from a food object and eating it, besides that you get to enjoy the taste of it.