Mother Goddess worship is one of the most distinctive folk beliefs of the Vietnamese people, originating from the custom of worshipping Goddesses and the image of the powerful Mother figure. In Hue, this belief bears its own unique mark with the Four Realms (Tu Phu) system – different from the Three Realms (Tam Phu) popular in the North. The Four Realms include four sacred realms: Heavenly Realm (Thien Phu), Earthly Realm (Dia Phu), Water Realm (Thoai Phu), and Mountain and Forest Realm (Nhac Phu). Each realm is governed by a Holy Mother, among whom Holy Mother Thien Y A Na – a Viet-ized Cham goddess – plays a central role in the spiritual life of Hue people.
Not stopping at honoring women, Mother Goddess worship also reflects humanity's eternal desire for a prosperous, happy, and peaceful life. With that significance, in 2016, UNESCO honored "Practices of Mother Goddess worship of the Three Realms of Vietnamese people" as an Intangible Cultural Heritage of Humanity, affirming the spiritual value and enduring vitality of this belief in Vietnamese cultural life.



