Originally posted by dadudemonNah.
Can't. 🙂It's my own interpretation of the universe.
Prove that wizards are magical because magic comes from their being, and only their being, and nothing else. 🙂
Although Saruman is a Maiar, and Maiar are divine beings that are gifted with magical powers themselves, they draw from no source of power.
But that is book stuff and is not applicable here.