Shangqing Taoism, one of the most influential schools in the religion's history, was not organized during Wei Huacun's lifetime at all. According to its own founding narrative, it began roughly thirty years after her death, when a visionary named Yang Xi reported receiving nocturnal revelations from a group of perfected immortals, among whom Wei Huacun herself now appeared, no longer as a deceased priestess but as an exalted being transmitting sacred texts from beyond death. The scriptures Yang Xi recorded from these visions, some thirty one volumes according to tradition, became the founding textual corpus of Shangqing practice, and Wei Huacun was named the school's first patriarch on the strength of revelations attributed to her that occurred after, not before, her death.
This structure, a school founded on the posthumous authority of a figure who during her documented lifetime held only an ordinary priestly office, is unusual even within a religious tradition well accustomed to claims of ongoing revelation, and it has drawn sustained attention from historians of Taoism precisely because it makes Wei Huacun simultaneously one of the best attested women in early Chinese religious institutions, through her libationer's office, and one of the most thoroughly reshaped by later hagiography, through her transformation into an active celestial patron. From the sixth through the tenth centuries, Shangqing became the most prominent school of Taoism, drawing patronage from Tang dynasty aristocrats and producing a body of scripture whose literary and visionary qualities influenced Chinese poetry as well as religious practice, all of it formally credited back to a woman who never saw the school built in her name.