Throughout her entire life she’d looked upon things and people that stood apart. She was Esmenet, and that was her bowl, the Emperor’s silver, the Shriah’s man, the God’s ground, and so on. She stood here, and those things there. No longer. Everything, it seemed, radiated the warmth of his skin. The ground beneath her bare feet. The mat beneath her buttocks. And for a mad instant, she was certain that if she raised her fingers to her cheek, she would feel the soft curls of a flaxen beard, that if she turned to her left, she would see Esmenet hovering motionless over her rice bowl.
Somehow, everything had become here, and everything here had become him.
Kellhus!
Bakker, R. Scott (2008-09-02). The Warrior Prophet: The Prince of Nothing, Book Two (Kindle Locations 7344-7349). Penguin Group. Kindle Edition.
This occurs just moments after Kellhus scrapes clean the parchment of the Tusk (let's just bracket and ignore that Kellhus thought a few pages earlier that he scraped Serwe's soul clean as though it were parchment and that Serwe's perspective believes she has been supernaturally healed after that event).
This occurs just moments after Esmenet sees Kellhus haloes for the first time (though she doesn't describe them as haloes).
Note that this is the best explanation we have so far for how Kellhus does what he does with Serwe's heart. What Esmenet experiences here is that she becomes Kellhus for a moment, that they are the same (we're even cued by the text to think of Esmenet's heart, her beating heart is her only connection to her physical body in this moment).
And in this presentation as Esemenet sees it, we are presented with a dialectic, thesis, "Everything had become here;" antithesis, "and everything here had become
him;" synthesis, "Kellhus!"
Or as presented before the author simplified it, "She stood here, and those things
there.;" antithesis, "Everything, it seemed, radiated the warmth of his skin;" synthesis, "if she turned to her left, she would see
Esmenet hovering motionless over her rice bowl."
Esmenet has her world rocked because the otherness of things is refuted and in accepting the refutation she becomes Kellhus for a moment.
The text continues:
She breathed in. Her heart battered her breast.
He scraped the passage clean!
In a single exhalation, it seemed, a lifetime of condemnation slipped from her, and she felt shriven, truly shriven. One breath and she was absolved! She experienced a kind of lucidity, as though her thoughts had been cleansed like water strained through bright white cloth. She thought she should cry, but the sunlight was too sharp, the air too clear for weeping.
Everything was so certain.
He scraped the passage clean!
Then she thought of Achamian.
Bakker, R. Scott (2008-09-02). The Warrior Prophet: The Prince of Nothing, Book Two (Kindle Locations 7349-7356). Penguin Group. Kindle Edition.
Note that Achamian seemingly collapses this connection between Esmenet and Kellhus, in a sense it indicates why Kellhus needs Serwe to die rather than Esmenet, because Serwe can maintain the synthesis longer, 'is she strong enough?' and Esmenet's connection is disrupted by her connection to Achamian
Also there's a suggestion here that Esmenet is experiencing Kellhus' thoughts, 'a kind of lucidity, as though her thoughts had been cleansed like water strained through bright white cloth,' and Kellhus is nothing if not "certain."
And note the experience Esmenet goes through in her 'single exhalation.' She is absolved. The timeline/dialectic here is, "Kellhus erases" "Esmenet is absolved" "Kellhus rewrites Esmenet" (I'm taking the archaic root of shriven which is related to 'to write', which is probably an absurd reach by any standard).
I don't think Kellhus realizes what really happens for Esmenet, he thinks she suddenly sees him as a god because he deepened his voice and looked at her with a different expression, but Esmenet sees him as a God because she experiences what it is like to be Kellhus.
And there's also the possibility that Kellhus in this moment really does 'heal' Esmenet's soul, perhaps that is the answer to the dialectic of esmenet, the synthesis, if you will.
Esmenet Stands Apart from all things not Esmenet, Kellhus is all things in one including Esmenet, Esmenet is absolved/forgiven/shriven/healed.
But it's momentary at best, she later thinks that she cannot rinse away the sin, as she experiences the sin rinsing away when she's unified with all things/Kellhus.