Xu Qing's goal was simple.
These outsiders had all hidden themselves well, and none of them were simple individuals; each was quite cunning.
Unless due to some unavoidable circumstances, like heaven's chosen Li, who had no choice but to act at the risk of being exposed, finding them would have been like searching for a needle in a haystack
After all, each of them had different objectives, which made it very hard to discern any clear patterns or distinctive traits among them.
As for the descent of consciousness, if they had the intention to remain hidden, it would be even harder to distinguish.
Among them, those whose objectives would cause ripples in time were easier to handle; Xu Qing had some confidence that he could slowly find them, because in this segment of history, his identity was like a torch in the night.
It would naturally draw attention.