User blog comment:Hidden Scorpius XI/My impressions on "A Much Needed Talk" (V4-E8)/@comment-24122714-20170102041229/@comment-74.215.25.222-20170104005346

I have a theory concerning Dust. Dust seemed to come after mankind had started. In V1E1, Salem explained that the creatures of Grimm withheld the progress of humanity until Dust appeared. I theorize that Dust is the physical manifestation of a dead person's soul. This theory is supported by Penny. Penny was the first gynoid with a soul extracted from Dust.

This is just a theory. Please add to it.