This was all Shisu's soul was able to do—bear the Memory, but when Rowan began making sweeping changes throughout history, and without Shisu being able to utilize his Aura to support these changes, then it began to eat at his soul, using it for fuel to support this dimension.
His understanding of Will began to grow at a ridiculous speed, especially on matters of the sixth dimension, he could not have asked for a better lab rat. Any sixth-dimensional Will Holder that was to be found outside of reality would only reach this level after they had crossed over countless challenges and deadly dangers, they would be the best of the best out of countless geniuses for a nearly infinite pool of universes.
Even if they were weaker than Shisu in raw power, they would understand a far more intricate method of wielding their abilities and they would have something that this realm solely lacked, and that would be treasures!
