Cultivators prioritized advancing their states of mind over everything else. If their state of mind was unable to keep up with their progress, then it didn't matter how quickly their powers grew. There would always be some kind of hidden hazard somewhere that could one day bring about their demise.
Shi Buyi's enlightenment would greatly benefit him sometime in the future. Given his current level of training, advancing his state of mind further would've at least enabled him to reach the very peak of the Divine Transformation Realm.
Otherwise, the heritages throughout the Holy Sun Continent being incomplete would have allowed him to actually break through the Divine Transformation Realm.
Of course, Lu Xuan could easily see how much Shi Buyi had changed. That was a good thing, as Shi Buyi had always been a decent person; he was never the type of person who went about biting the hands of those who were generous enough to feed him.
