A Realm Assembled From Older Pieces

Diyu as a unified system is a comparatively late synthesis, and Chinese Mythology scholarship traces its major components to distinct earlier sources that only merged gradually over centuries: Huangquan, the Yellow Springs, is the older, pre-Buddhist Chinese term for the underworld found in classical texts, imagined simply as the place beneath the earth where the dead go, largely without the elaborate moral machinery added later; Fengdu, by contrast, developed as a specific mythological city of the dead associated with a real place in Sichuan province, gaining its own city god and administrative apparatus through popular Daoist and folk religious elaboration; and the full apparatus of ten courts, each headed by its own king or judge and specialising in particular categories of sin and punishment, arrived through the deep influence of Buddhist Naraka cosmology as it spread into China and merged with these existing native concepts. The Ghost Festival, Zhongyuan, depends directly on Diyu's administrative logic, since its central premise, that the gates of the underworld open once a year to release the dead, only makes sense within a system that treats Diyu as a place with actual gates, courts and controlled admission rather than an undifferentiated shadow realm.