User blog comment:ChishioKunrin/Maidens - Origin of Dust and the Kingdoms?/@comment-98.250.233.77-20151214231846/@comment-4010415-20151215074238

I know that the Maidens' powers are separate from Dust, and I do think that they're likely not limited to by the seasons they represent, but it would be interesting if Dust comes from the Maidens' souls, perhaps by way of "magic residue" seeping into the ground when they die. Thousands of years worth of mere residue of Maidens' powers is sitting underground, being mined and used to fight the Grimm.