When the four supreme beings returned to the three questions of Dan Ni, they quickly realized Xie Tian's third question was also correct.
"What an outstanding Dan Ni's three questions!"
"Dan Ni's first question is about the foundation, grounding oneself on the path of cultivation firmly; the second is about insight, unifying knowledge and action on the path of cultivation; the third is about the heart of the Dao, allowing one to navigate the path either forward or reverse, all depending on one's heart..."
"If Xie Tian might have guessed the first two questions, but the third question..."
...
The elderly Heavenly Dao's expression was somewhat unnatural, as if he had been slapped.
"Li Yazi, you really led me astray here..." Remembering Li Yazi's various reactions, the elderly Heavenly Dao smiled bitterly.
Li Yazi snorted, "It's just as it is."
