Daoist Xin had seen it. Daoist Zhengqing's qi could assimilate the qi of others, and due to his Dao methods, there was no obvious distinction here between spiritual qi and his worldly body.
His own spiritual qi could take on the exact same form as another's spiritual qi. This, too, was a characteristic of his Dao methods.
Simply merging into another's qi could never harm an opponent; that was the prerequisite for his being able to merge with it. Yet this qi was ultimately foreign, not of the same origin, and its original owner had not perished. Thus, once he fought this person, the nail planted beforehand could show its wondrous use.
He looked again toward the Divine Void Land. Seeing that Daoist Zhengqing had failed to detect anything amiss, he smiled faintly. Yet in the next moment, a trace of astonishment appeared on his face.
The spiritual qi that had merged into it had actually been completely dissolved.
He found this difficult to understand. If his spiritual qi was incompatible with the other party's, then it should never have merged in to begin with. How could it be dissolved afterward?
Could he have exposed some flaw just now?
So he examined it again. Yet after this inspection, his gaze gradually sharpened. So it is not merely that his Dao methods are utterly pure—it is that he transforms others and transforms himself?
As he continued observing, he saw that the surface of Daoist Zhengqing's Divine Void Land was changing every instant, each instant purifying the self of the instant before. I am myself, yet I am not myself; the self of the previous moment is not the self of this moment.
This was the first time he had encountered such a situation.
Moreover, few cultivators would do such a thing.