Teaching benefited both teachers and students; when one taught, they could also improve at the same time. San Yuan agreed to help out since he could also review what he had learned before. "Recall the past to understand the future"– obtaining new inspiration and breakthroughs in magic through teaching was in fact another Dao path as well.
That was also the reason some great masters liked to look for stupid disciples to teach; generally speaking, the harder it was to teach these disciples, the more enlightened the masters became. Moreover, according to latest research stats, civic teachers in the cultivation world were 7 to 15 percent more likely to achieve new breakthroughs in their spell compositions compared with orthodox cultivators.