 His followers wore amulets bearing the Chinese characters for Bửu Sơn Kỳ Hương, a phrase that became identified, retrospectively, with the religion practiced by Huyên, and the millenarian movement associated with the latter.The faith has roughly 15,000 adherents mostly concentrated in the provinces of An Giang, Đồng Tháp, Bà Rịa-Vũng Tàu, Long An, Sóc Trăng, Vĩnh Long, Tiền Giang and Bến Tre.Đạo Mẫu ("Way of the Mother") refers to the worship of the Mẫu, the Mother Goddess and the various mother goddesses, constituting a central feature of Vietnamese folk religion.