Through a synthesis of various pieces of information, Lin Yi inferred that the testing and examination of the Tai Xuan Dao Palace indeed existed in reality. After all, this kind of thing could easily be verified by asking someone, and no organization, no matter how powerful, could possibly bribe everyone.
He suspected that among the Spirit City Guards responsible for the testing here, there must be members of the hostile organization of the Creation Method, and some might even hold high ranks.
After all, in the visions of Predict Crisis, there were quite a few Refining Void Cultivators wearing armor, and the so-called test would certainly be tampered with. Instead of testing one's abilities, it was more about testing the spiritual power of Creation.
Those people could coax Cultivators of the Creation Method into their ranks, so detecting traces of practicing the Creation Skill would presumably be a simple matter for them.