reverend insanity

Cultivation is divided into nine ranks - Gu Master (rank one to rank five) and Gu Immortal (rank six to rank nine) cultivation. Mortals are those who haven't yet started cultivating. Those who manage to open their aperture are, henceforth, called Gu Masters. They nourish their aperture walls and destroy them repeatedly until reaching the peak of mortal cultivation. They can decide to attempt immortal ascension and become an incomparably more powerful Gu Immortal. "...in this world, there are no useless Gu worms, only useless Gu Masters." Humans are the spirit of all living beings and Gu are the essence of heaven and earth, the essence of the world itself. In the Gu world, there are countless species and an ever-increasing number of (new) Gu. Wild Gu are able to use naturally occurring primeval energy and create wondrous effects. In nature, under the right conditions, Gu can form from lifeforms such as insects, they live everywhere in the deepest crevices of the earth, the highest of clouds, on the bodies of wild beasts, and most dangerous of plants, and even in the dreams of man. The scholars of the past have gradually uncovered the mysteries of the Gu, mortals who have opened their aperture, were able to use primeval essence to refine, manipulate, feed, and raise Gu. Such people are called Gu Masters.