I'm sure this topic has come up before, but I didn't see it while skimming topics. Sorry, but posting from a phone makes searches a bit difficult. Anyways, I'm a Zoroastrian king that controls all the holy sites. However, I'm currently under the Abbasids. I've been reluctant to declare independence although I'm already more powerful than my liege. I'm still surrounded by religious enemies. Is it possible to reform the faith before I'm independent? Or are there other considerations I need to take before I could reform it anyways?