When emphasising this monism, Rodnovers may define themselves as "rodnianin", "believers in God" (or "in nativity", "in genuinity"). Already the pioneering Ukrainian leader Shaian argued that God manifests as a variety of different deities. This theological explanation is called "manifestationism" by some contemporary Rodnovers and implies the idea of a spirit–matter continuum; the different gods, who proceed from the supreme God, generate differing categories of things not as their external creations (as objects), but embodying themselves as these entities. In their view, beings are the progeny of gods; even phenomena such as the thunder are conceived in this way as embodiments of these gods (in this case, Perun). In the wake of this theology, it is common among Slavic Native Faith practitioners to say that "we are not God's slaves, but God's sons", many of them emphasising the ontological freedom of the different subsequent emanations so that the world is viewed as a "dialectical manifestation" of the single transcendental beginning and continuous co-creation of the diversified gods and the entities which they generate. The Russian "volkhv" Velimir (Nikolay Speransky), emphasises a dualistic eternal struggle between white gods and black gods, elder forces of creation and younger forces of destruction; the former collectively represented by Belobog and the latter by Chernobog, also symbolising the spiritual and the material. Such dualism does not represent absolute good and evil, but the black gods become evil when acting out of agreement with older and stronger white gods.