Chen Di Xi was no stranger to Yang Yong Xing's eerie change, in fact, he had even spent time researching this phenomenon.
There was also a special mention of it within the Spiritual Inception cultivation method, calling it Origin Assimilation.
When human willpower could not catch up to the rate of release of the [Origin], they could easily be corrupted by the [Origin], thus undergoing Origin Assimilation, their rationality would collapse and be destroyed, turning them into indescribable monsters.
However, this phenomenon would only occur on those without a strong will, or those who were at the verge of releasing their [Origin], once the released [Origin] stabilized, its corruptive properties would gradually recede.