There were many things that made Rowan special, and among them was the fact that he was genuinely ignorant of his capabilities in a way that would be almost impossible for him to understand.
He had never known a peer or someone who had his capabilities as he evolved from a mortal to a Reality, and so he had no method to gauge his progress or accomplishments, and that was the reason he could not understand that what he was making of himself inside this space was impossible.
The Primordial Record could do the impossible, but a lot of its power was dependent on Rowan's abilities, and no matter how powerful he was, he was still a seventh-dimensional immortal, and he was dabbling with forces that he suspected had faintly exceeded the ninth-dimensional level.
Serathis, Prime, and the Serpents were still inside Oblivion, devouring the bones of the Primordial Ouroboros.