Side entrance of Cao Dai holy see. Painted on the wall the holy allseeing eye. Cao dai is an indigenous Vietnamese sect that seeks to create the ideal religion by fusing the secular and religious philosophies of both east and west: Roman Catholicism, Taoism,ConfucianismSpiritism, Ancester worship. It was founded in the 1920's. There are currently two illion followers in Vietnam. The Holy See is in Tay Ninh, not far from Ho Chi MInh City.