The Tianshi, a lineage of singular cultivators, drew upon the very sinews of the cosmos to shatter the confines of their mortal selves. The initiates, newly bound to this path, first learned to channel the brute force of the Four Celestial Guardians: the Azure Dragon, the Vermillion Bird, the White Tiger, and the Black Tortoise. As their prowess deepened, they moved to refine their physical forms, harnessing the elemental might of the Five Phases—Metal, Wood, Water, Fire, and Earth—to transmute bone and marrow. The truly potent among them could project their consciousness into the deep void, borrowing the stellar radiance of the Big Dipper’s seven stars to temper the very essence of their spirit. And those who ascended to the highest echelons walked in communion with the sun and moon, grasping the ultimate, cyclical truths of cosmic birth and ultimate dissolution.