Becoming Stronger
Being able to think through pain changed everything. His Myrtharian Spirit was already inherently capable of multitasking.
As soon as he was able to concentrate again, he split his attention into several parts. One of them began to study his Novice Aether Manual, the second continued to draw energy from the Soul Stone to sustain his strained Spirit Body, while the last one began to study in earnest the enormous mass of data contained within the Soul Stone itself.
Simply assimilating the Stone's Soul Energy was enough to grant him some of Xion Zolvhur's innate mental abilities and knowledge, but he was still limited by his lack of proficiency in the Aether language.
Jake had long ago developed a photographic memory and had easily memorized the elementary Aether Runes contained in his manual. The problem was performing them instantly. An architect might know how to draft a house, but he couldn't draw the blueprints with a snap of his finger.