Tay Ninh Cao Dai Holy See Temple

Caodaism is a monotheistic syncretic religion that retains many elements from Vietnamese folk religion such as ancestor worship, as well as "ethical precepts from Confucianism, occult practices from Taoism, theories of karma and rebirth from Buddhism, and a hierarchical organization from Roman Catholicism". It was officially established in the city of Tây Ninh in southern Vietnam in 1926.

The full name of the religion is Đại Đạo Tam Kỳ Phổ Độ.Adherents engage in practices such as prayer, veneration of ancestors, nonviolence, and vegetarianism with the goal of union with God and freedom from saṃsāra. Estimates of the number of Caodaists in Vietnam vary; government figures estimate 4.4 million Caodaists affiliated to the Cao Đài Tây Ninh Holy See, with numbers rising up to 6 million if other branches are added.