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?
Well, I was thinking that Kellhus is somehow outside of time, but that doesn't really make sense, since if he was, why not just go back and kill anyone before they were even a problem? No, something more subtle is happening I think.
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?