Lan Pili, like him, was only at the Core Formation Stage—how could he have seen the Grand Preceptor in action?
"That was during the succession ceremony of our Sect Leader True Person," said Lan Pili, turning to Cao Zhen. "Since our Hundred Peaks Sect accepted the Grand Preceptor's recognition, every time a new Sect Leader True Person takes position, the Grand Preceptor comes to grant his endorsement.
Actually, it's not just our Hundred Peaks Sect. Every time there is a Sect Leader succession among the ten Immortal Sects, the Grand Preceptor grants his recognition. Of course, it's not the actual presence of the True God Grand Preceptor but a sword light, just like the one we have just seen.
Back when our Sect Leader True Person ascended, Peak Master Cao, you had not yet... not yet joined our Hundred Peaks Sect, so you didn't see it."
Cao Zhen nodded in understanding, guessing that he probably hadn't even been born yet, so he hadn't witnessed the Grand Preceptor in action.