Theurgy

Theurgy is a form of Thaumaturgy that invokes the divine to give power to the miracles. Theurgy is exclusively practiced by priests who are trained in the religious rituals required to invoke the divine power. Theurgy can only be invoked from the God of Christianity or Islam, which both sides have used to prove that their religion is right. It is thought that Theurgy requires Jesus Christ in some way, as these two religions both recognise him as a prophet.

It is unknown whether it is actually God giving power to the Thaumaturge or whether it is the act of worship that powers the miracle. Non-Christians and non-Muslims invariably argue in favour of the latter, and there are some non-Christians and non-Muslims who have successfully used Theurgy without believing in the Christian or Muslim God, although it should be noted that this was difficult to achieve and yielded weak results.

Theurgy powers Light Thaumaturgy, which revolves around the usage of light and fire. Theurgy is the only known way to get Light Thaumaturgy to work. It is often referred to as the Holy Flame or Divine Flame, but adherents of Orthodox Christianity refer to it as the Cleansing Flame.

Theurgy can also be used to enhance Storm Thaumaturgy (referred to as the Divine Wind), but it is not the main source of power for it.

Angels are highly skilled in Theurgy and take almost all their power from it.