The majority of knowledge on this church comes from outside non-adherent sources and its exact nature is a subject of much scholarly debate, particularly around its possible dualist teachings.
Suurem osa teadmistest selle kiriku kohta tuleb välistest ebakindlatest allikatest ja selle täpne olemus on paljude akadeemiliste arutelude teema, eriti võimaliku dualistliku õpetuse ümber.