If the person who tries to spy has a very high Divine Soul Realm, then even if they control the Roundness Instrument, the chances of failure are still high.
Yan Xin, sitting in the Book Tower, can almost see all the events in the world.
However, there are a few individuals whom he cannot see clearly.
For instance, Zhao Chunyang, Xiao Yaozi, and even... the Holy Empress.
Now that only a small part of the Karma Principle within Mi Yun has awakened, he's able to see the scenes of Ren Shou Palace?
"The Karma Principle and the Sky Watcher's spying on Heaven's fate should be somewhat different."
Xie Xuanyi spoke slowly with a conjecturing tone: "The Sky Watcher needs to use the Roundness Instrument to send Divine Thought to the endpoint of Heaven's fate, whereas the Karma Principle is about fishing for 'guidance' in the great Dao River. If I'm not mistaken, the former can see much more clearly, while the latter doesn't require high realm restrictions."