Hume religion is full of the legends of the past. In short, ancient humes that achieved some level of immortality (through magickal methods or otherwise), are frequently worshipped as gods. Some of these powerful humes even believe in their own divinity. Frequently, humes that could not become immortal but achieved a fair enough level of renown have cults and the like that continue to worship and revere these long-dead heroes (and villains).