My character
My Forsaker believes that magic is something like anything *extra* that we put inside our bodies, but was already produced by it (proteins, those things). When the power it provides comes from an outside source, such as magic (or capsules), your body lessens its natural production, so when you no longer have this external source, you become weaker or sick.
Therefore, only by not letting them into your body, one can discover a his/her true natural power, which would increase if not messed up with.
He believes that magic has been in the world for too long, and it has weakened the races. now its time to recover our power.