There are a few religious beliefs that are pretty obvious when it comes to what they're inspired by, such as Cathedrals from Christianty, and Mosques from Islam. But what are the other beliefs derived from? I assume Sacred Water is inspired by Hinduism, with the holy river Ganges and all that. Religious Texts is probably a nod to how the invention of the printing press helped fuel the Reformation, so Protestantism. I recall Tengriism and other central Asian folk religions incorporating something similar to Earth Mother in their faith. Holy Order is clearly a reference to the various Christian (specifically Catholic) monastic orders. Messiah is from both Judaism and Christianity in general. What other can you come up with?