@ Duskweaver
Is it worth pointing out the etymological link between 'Oblivion' and what happens to Erratics? Oblivion is forgetting. If an Erratic got to the point that he couldn't even remember traumatic events any more, would he escape Damnation and find true Oblivion?
This is really strange. Combine what you said with the way ciphrang are supposed to feast on souls forever, I guess they would do that by forcing you to remember/relive your misdeeds in life. So Hell is remembering bad shit, maybe there's a Heaven where you only remember the good bits, and maybe you can just aim for eternal slumber.
Perhaps the nonmen are forgetting that they're not supposed to remember, failing to remember that they really wanted to forget it all.

It's neet the parallel between the Nonmen seeking spiritual void and the Inchoroi traversing physical void. Are there no voids left for the humans???
The sought after void = the darkness that comes before? the puppeteer's place?
@ Madness - I would bet that the nonmen had some idea of their spiritual state before the Ark fall. If there was a time when gods walked the world with humans, maybe the nonmen had a similar experience. Maybe they had a falling out and that's what got them damned! The absence of a nonman creation myth/fall from eden loomz.