The second phase of the breakthrough wasn't painful, but Noah still didn't manage to study much. The empowered mental energy had strange effects on his mind that he couldn't completely understand. It almost seemed to cloud his senses on purpose during the process.
Still, Noah could finally think somewhat properly during that phase, even if his mental energy continued to flow toward the ethereal blackness and return to aid in modifying his mental walls.
It almost felt normal for the mental sphere mind to go through that second phase when Noah thought about it. He had built the ethereal blackness to have far higher standards than the center of power that his organs would naturally generate. Those standards became requirements after the breakthrough that triggered the transformation.
Expectations built inside Noah as the process continued. He couldn't wait to see the new power that his mind would wield after the breakthrough and transformation.