What Chinese folk religion practices as Zhongyuan Jie on this date represents a historical convergence of at least two formally distinct liturgical traditions that most ordinary participants no longer experience as separate. Daoism observes the fifteenth of the seventh month as Zhongyuan, the Middle Prime, one of three annual festivals marking the birthdays of the Three Officials who govern heaven, earth and water, on which the Earth Official is specifically petitioned to pardon the sins of the dead and release suffering souls.
Buddhism independently observes the same date as Ullambana, commemorating the story of the monk Mulian, who used his spiritual powers to see his mother suffering as a hungry ghost and, on the Buddha's instruction, made offerings to the assembled monastic community to secure her release, a rite historian Stephen Teiser has traced in detail as it developed into a major public festival in medieval China. Chinese folk religion, characteristically syncretic and organized around local temple practice rather than a single doctrinal authority, absorbed elements of both traditions into a single set of observances: burning joss paper and spirit money, setting out elaborate food offerings on streets and altars, floating lit lanterns on water to guide lost souls, and staging opera performances with a front row deliberately left empty for the spirit audience, practices still widely observed across mainland China, Taiwan, Hong Kong and Chinese diaspora communities in Southeast Asia.