If you are gonna quote me, at the very least be sure to quote something I said. Putting words in other people's mouths is both rude and offensive...
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Ah but is that the really the gods speaking in their heads or are they just little crazy
It's true that as a servant of God, she has a link with him?/her?/it? and thus she can hear his?/her?/its? voice.
However when tainted, the link is broken and the voices she hears from them on are actually her inner desires. Simply put: she induces mind control on herself.
She can follow "God" commands and start walking down the path of lewndess with her "chosen one"...
...Or if she for some reason realize that the voice she's hearing is actually her own desire, thus realizing that she doesn't need to hear nor heed them anymore and she will fall completely into depravity, thus becoming a Dark/Fallen Valkyrie.
I hope that pretty much solves this peculiar question.