I am one of the heretics by virtue of birth. Using the arcane powers of ancient blood is how we practise medicine, at home. There are many strains. The Healing Church dictates which are holy and which are impure. The one that my family uses has been declared heretical for many years.
To be fair, my family has done many egregious things worthy of condemnation. The Church is not entirely wrong in its assessment.
Nevertheless, I defected from my family and now work for the Healing Church in research and the disposal of beasts. They accept me, mostly, although naturally I am still impure, disgusting, and reprehensible, etc & etc.