Kao’s reference is Caodaism Caodaism is a monotheistic syncretic new religious movement officially established in the city of Tây Ninh in southern Vietnam in 1926. The official name of the Cao Đài religion (or Caodaism) is Đại Đạo Tam Kỳ Phổ Độ. Translated directly it means "The Third Great Universal Religious Amnesty" (Đại Đạo – "Great Faith", Tam Kỳ – "Third Period", Phổ – "to announce" and Độ – "to save"). According to Cao Đài's dogma, this Third Period will be of intense religious activity which will unite God and humanity in ways not yet imagined. Cao Đài also states that the Third Amnesty will establish a new great faith for the salvation of living beings before the universal destruction. The primary objective of the Third Amnesty is the unity of all religions, which will bring mankind together in a universal family for universal peace. Caodaism teaches that, throughout human history, God the Father has revealed his truth many times through the mouths of many prophets, but these messages were always either ignored or forgotten due to humanity's susceptibility to secular desires. Adherents believe that the age has now come when God speaks to humanity directly. 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. However, estimates vary. The United Nations found about 2.5 million Cao Dai followers in Vietnam as of January 2015. An additional number of adherents in the tens of thousands, primarily ethnic Vietnamese, live in North America, Cambodia, Europe, and Australia as part of the Cao Dai diaspora.