In the Viet beliefs of The Worshipping of The Mother Goddesses of Four Realms, it’s a very familiar concept of “căn đồng” as well as “người có căn”. In Vietnamese, căn đồng means The Fate of a medium and người có căn describes A person was fated to be a medium with a lot of particular traits.
Each type of religions has the own rites to practice their beliefs, so does the Worshipping of The Mother Goddesses. In the beliefs of the Worshipping of The Mother Goddesses, one of the important rites is trình đồng mở phủ, which is the ritual of practices of this religion.
There are many civil rites of hầu đồng. Each area has different way and chooses different time to organize rites with the own purposes and meanings. However, there are some general principles in rites of hầu đồng for mediums to know and learn to practice properly.