Ok, I kinda get it.  The words are more like a way to channel a practiced utilization of the Aether. Sort of muscle memory.  

I get the conduit thing but if we are still following the Merlin's Cannon then this might be an evolutionary magic or it could actually be utilizing ancient methods.  

I feel like in the current futuristic meld society they would think more scientifically with few mages truly unlocking the mystical and obscure.  Maybe that is why the Sorcerer King became so powerful?

Again, not saying anything against it, just wondering how Arn can actually compete against this sort of casting and power lol.  He feels like a little novice right now.