Firstly, this topic actually parallels Herbert for me so Dune spoilers for those whom have not read the series.
I just had an idea, because I was spinning some nonsense in chatting with Madness the other day, coming up with things that make sense but not really. My question was essentially, why does Yatwer seem to be able to see everything, what happens and move agents within that, yet, cannot account for Kellhus?
Or the No-God for that matter, though I have theories regarding both.
So, in spinning ideas of what goes on in the scene where the White-Luck Warrior tries to assassinate Kellhus, I started to wonder, what goes wrong? It's Kelmomas' intervention, seemingly, that disentangles Kellhus and the Narindar. That got me thinking, what do Kellhus (who has shown to be disentangled before and act beyond Yatwer's seeing) and Kelmomas share? Well, one, is blood, but what is the effect of the blood? Possibly the answer is to be "self-moving souls."
How? Well, Kellhus tells us he is moved by visions (a topic for yet aother thread, but here it suffices that they exist, whatever the source) and Kelmomas is moved by either the Voice, Esmenet's affection, or, as Inrilatas, tells us, the pursuit of God-hood, perhaps The Absolute. In either case, they are outside the usual cause-effect chain, outside the Darkness the Comes Before.
Why would this make them blind spots to Yatwer (and the rest of the Gods). Well, possibly because the God are that Darkness. Since they come before, they know what comes after. But with the Absolute, with a self-moving soul, they are blind, because they cannot be seen in the chain of cause-and-effect.
Indeed, Kellhus says "You can be Everywhere and still blind," "You can be Eternal and remember nothing." Also, "Even the infinite can be surprised." The Anasûrimbor's are outside what the Gods can predict, because they are outside the God's influence (mostly). They have the ability to move themselves, independent of the God's entangling.
Perhaps?
Just to get this out of the way. In God-Emperor of Dune, Siona is the result of a breeding program by Leto resulting in a biological equivalent of the Ixian "No-Field," which was a physical space that prescient beings (like Leto and Paul before him) could not account for.
Now the conceit here on my part is that the Dunyain inadvertantly accomplished with the Thousand Thousand Halls what the Nonmen tried to do - maybe succeeded in doing - by digging deep to hide their damnable actions from the Gods. There's discussion for another thread, that maybe Mimara can see the Damnation of the Dunyain for their treatment of the Whale-Mothers, but the idea would be here that perhaps all Dunyain, thus Kellhus' children, managed through their interaction with the Thousand Thousand Halls to become "No-People" a la Dune.
So reasoning aside - should you not want to read through a Dune parallel - perhaps the blood of Dunyain, thus the blood of the Anasurimbor following Kellhus, allows you to avoid the total perception of the Gods.
We could talk about the No-God in this thread but I feel like that deserves its own thread, based on comments by Oinaral.