IIRC, in early Zoroastrian scripture, Ahura Mazda and Ahriman are described as equal twins, locked in eternal struggle. In later Zoroastrianism, Ohrmazd is the more powerful of the two, who will eventually win. Gnostics seem to view God as not only more powerful than the Demiurge, but also on a different level of being entirely? So there seem to be many flavors of theological dualism? Would this translate into saying that there is no trace of light at all in darkness - but there are pinpoints of darkness in light? Or gradations of light? The dark spot where the flame attaches to the wick, sort of thing?