At the Fourth Supreme Circle, his Nascent Primordial bloodline had grown to an extent that it could contain a portion of his Dimension. It could not hold it for long and as a consequence, Rowan would not be able to access his full powers as a Nascent Primordial, but it was enough to buy enough time for his next objectives to proceed in the direction he wanted.
The time for subtlety was coming to a close, but he still had one hand left to play. He had made plans, set his baits, and sweetened the lure, he expected that the big fish would soon be biting.
Rowan calculated how much time he had in the body of his Spirit Guises, and he pegged it down to a few weeks. Splitting his body into seven parts just accelerated the amount of resources he consumed to exist in three-dimensional space without breaking the fragile laws of reality inside a universe.