Dao Cao Dai (Caodaism in English) is the third largest religion in Viet Nam (after Buddhism and Roman Catholicism). "Cao" means "high"; "Dai" means "palace".
Caodai refers to the supreme palace where God reigns. The word is also used as God's symbolic name.

Caodaism is a syncretistic religion which combines elements from many of the world's main religions, including Buddhism, Confucianism, Christianity, Hinduism, Islam, Judaism, Taoism, as well as Geniism, an indigenous religion of Viet Nam.

Cao Dai is a universal faith with the principle that all religions have one same divine origin, which is God, or Allah, or the Tao, or the Nothingness,
one same ethic based on LOVE and JUSTICE, and are just different manifestations of one same TRUTH.