Unconsciously, he had already spent ten days in the Violet Jade Fairy Realm. During the refining process, he gained more insights from the use of the original flame. This could be seen as killing two birds with one stone - improving his Ancient Yin Yang Flame Technique while extracting the essence of Gold.
Afterwards, Qing Shui began practicing his Pierce Sword skill, while focusing on gathering power at the sword tip to control his strength. Mastering it to the extreme could even allow him to achieve breaking stones with an egg!
While sparring with Wenren Wushuang, Qing Shui seemed to understand something, but the feeling was extremely elusive; it seemed present but not, preventing him from fully grasping the insights he gained.
Through repeated practice, meditation, and trying to find the exact feeling when he divided the sword with Wenren Wushuang.
