Thread:CrimsonFire735/@comment-4960835-20150119181139/@comment-4001163-20150125220509

Antroths describe magic as a part of the physical being, while Essence is the energy of the spiritual and universe. The more powerful your body in terms of Mana capacity and output, the more magic you can use. The more spiritual you are or more connected to the universe you are, more Essence is available to you.

That is the Antroth take on things, since they developed their own unique form of magic.