The realm of Chu Kuangren's Daoism was just too high.
This was especially after his three years of closed-door meditation to gain insights into the Emperor's Scripture. He currently possessed an extremely high-level understanding of Daoism, which might be even comparable to a Sage's as well.
Soon after he realized that, an idea came into Chu Kuangren's mind. What would happen if he were to mentally spar with a Sage?
He already had the intention to mentally spar with a Sage long ago.
However, there had been no chance for him to do so.
Right now, that opportunity was laid before him.
"I'll wait a little longer." Chu Kuangren took a deep breath to suppress the impulse in him, not because he was afraid of that challenge but because did not want to interrupt the Sage in the middle of his Daoist teachings. It would be rude on Chu Kuangren's part if he were to rashly do so.