Guang Chengzi naturally had reason to be shocked.
He was shocked because he understood all too well how terrifying the Will of Heaven was.
The strength of this will surpassed every individual in the world other than the Sacred Dynasty Human Emperor. Even figures as powerful as the Regent King or Qin Shi Huang in their day could not truly contend with the Will of Heaven in its entirety; at most, they could resist part of its power. That was precisely why the Sacred Dynasty Human Emperor was so great.
The reason he could wear away the Will of Heaven within his body was not only because the invading Will of Heaven was not particularly strong, but also because of his own unique condition.
Otherwise, he would have needed to spend a very long time gradually wearing down the Will of Heaven in a protracted struggle.
The process would certainly not have been pleasant.
Jiang Dali was a True Return Realm expert who had failed to break through to the Boundary Breaking Realm. It was already a blessing beyond measure that he had not lingered on under the Will of Heaven's devastation and suffered a drop in realm. How could he possibly have gained the ability to wear away the Will of Heaven in such a short time?
Yet no matter how shocked Guang Chengzi was, Jiang Dali had indeed successfully eliminated the Will of Heaven from his body, including from his mind and spirit.
He had even boldly attempted something wildly imaginative: using the Great Strength Absorption Skill to forcibly absorb Heaven's will, hoping to devour and assimilate it in reverse, merging it into himself.
Unfortunately, the attempt naturally ended in failure.
Although his Great Strength Absorption Skill was powerful, before it could even begin devouring the Will of