Did anyone else notice that after Yumi stacks the rocks the first time, she is described the same way that the people in the city of Kasitor in Iri are described after every day when Cusicesh the Protector disappears (I don't have the exact quote on me, but I know it takes place in The Way of Kings, Interlude I-5)?
Knowing that Yumi is a cognitive shadow here and that parts of - or entire, in the case of the father machine - spirit-webs can be ripped from living beings, is Sanderson suggesting that the Protector is acting in this way? For what purpose? To gradually power up a larger fabrial? I'm aware of the theory that Adonalsium intentionally designed Roshar pre-Shattering and that the planet/solar system itself may very well be a massive, cosmic fabrial so I'm curious as to whether we're seeing the way that the fabrial is gaining its power is through this arrangement with the Protector & the Iri.