Despite the Book Worm's profound ability to perceive the power of causality, there are various factors that can cause interference.
For instance, when a great calamity arrives and tribulation energy soars into the heavens, it confuses causality.
Even if one were to perform divination, they would not retrieve any information.
The various threads of causality are in disarray, tangled like a mess of hemp.
In such a state, all cultivators are blind, unable to discern the many messages.
Similarly, individuals of great destinies are shrouded in fortune, making their causality obscure, and others who perform divination cannot detect the presence of a Child of Destiny.
They cannot even sense the Child of Destiny's thread of causality.
After all, within the depths of the Heavenly Dao lie countless threads of causality; searching for the specific thread of a particular person is like looking for a needle in the ocean, virtually impossible to find.