The process of Inner Refining of the Lungs and Spleens involved tempering the body's various organs. Once this tempering was complete, it could increase one's lifespan, but Yang Chan wasn't sure if it would also increase his talent.
He hadn't seen this mentioned in any of the books about breaking through to the Inner Master realm. It was also possible he just hadn't accessed such core texts yet.
Within the Cyan Yuan Sect, all Inner Masters were Elder-level figures. It was only natural that secrets concerning such individuals were kept confidential and inaccessible.
Take Yang Chan, for instance. If he hadn't poisoned and killed an Elder of the No-Life Evil Cult to obtain their Taiyin Heavenly God Skill, and also received help from Hall Master Gu An, the Flood Dragon Demon Breath Method would never have fallen into his hands.
