After entering seclusion, Zhang Yan would condense the clear and turbid two qi at midnight every day, during the moment of Yi Yang Laifu, merging them into unity. With the assistance of the "Moonlight Jade," his progress was exceptionally swift.
In addition, he purposely set aside an hour each day to refine the "Fate Determining Jade." This jade pendant, after each refining, could withstand three attacks from Dharma Treasures. In Zhang Yan's view, its value surpassed that of ordinary treasures. As for the remaining time, it was entirely devoted to cultivating the Inner Aperture Skill.
Once mastered, this technique would allow him to identify the properties and principles of various medicines without needing the Broken Jade. Moreover, even if immortal herbs and spirit roots were deeply buried underground, he could recognize them with proximity alone – an exceedingly practical skill.
