After all, it's widely known that completion means having everything, but focusing solely leads to mediocrity. Although you can cultivate anything, there are very few techniques that fully utilize such great talent. Mystic Sect emphasizes refinement, so a single Spirit Root is best, while dual Spiritual Roots are considered merely average. As Taiyin is the Taiji Nine Luminaries, there are naturally many techniques for cultivating True Yin Qi through Moon Worship. Single Spirit Root Sacred Body like Taiyin Dao Bone is naturally most suitable for refining Mystic Sect Qi Technique.
Moreover, nine is the ultimate number, combining Nine Yin and Taiyin, reaching Extreme Yin. It's fair to say that this body's talent might even attempt the most supreme path at the Mystic Sect's core. Would anyone say it's not good enough?
