Agathism (Canrillaise: Agathisme) is a syncretic and dualist religion practiced in Canrille or South Seleya, combining Zamāni dualism with a Hosian theology. Agathism has its roots in the re-emergence of Yazdean dualistic beliefs in South Seleya after the region's Hosianization, and it was a direct challenge to the power of the Holy Apostolic Hosian Church of Terra, until the religion was almost completely destroyed as a result of the Holy Wars of Kanjor. Now most Agathistes live in Alduria, where they form around 10% of the population.