Saaurithale, also known as creation, is an elvish belief about the universe. Saaurithale is different than the other sources of magic in the universe, as he is an entity, concept, and event. Saaurithale was the only entity before the universe itself existed. It was its decision to create a universe that led to its destruction but also allowed his own spirit to inhabit every piece of the known universe.
This being, which is classified as a "primordial," is a constant across any "created" thing, but the sentient being no longer exists. The entity would give rise to several other primordials that would eventually lead to the physical universe and everything within it, including the gods. Thanks to Saaurithale's incredible primordial presence, every living thing has that capability within themselves as well, which can serve as an incredible source of wisdom and power.
Since the power is internal and innate in all things, those most in tune with themselves and the universe can best utilize its power. This means that monks in particular take advantage of its power, though it's not exclusive to such devoted lives. Another benefit of using the innate powers of Creation is that it doesn't alter the individual, as they must unlock its power by first altering oneself spiritually.