However, the 37th Heaven was a realm that he had shattered, and he could use the spatial power of this layer with great efficiency. Furthermore, having broken through more than ten layers of the Netherworld, he also possessed considerable ability to utilize the power of the entire Netherworld.
There is a time lag between the thoughts in a Cultivator's heart and the spiritual aura they emit. For instance, the Cultivator first comes up with a notion in their mind, and only then will this notion be encapsulated in their emitted spiritual aura, allowing other Cultivators to sense it.
Even if this time lag is extremely small, it still exists.
Therefore, Lin Yun did not immediately sense why the Tri-Eyed Emperor exhibited such a change.
But soon, a trace of the spiritual aura emitted by the Tri-Eyed Emperor was sensed by Lin Yun. Although he did not perceive any specific information, he vaguely grasped the gist of it.