The Red Flower Princess absorbed all of Xie Ying's spiritual energy, and after also absorbing Xie Shan's essence for a long time, her Dao skills and divine abilities are far beyond what they used to be.
Even though her body was cut in two, her divine abilities and transformations remained unchanged, and her power was undiminished.
The three volumes of the Heavenly Book left by Shi Feiyang for the young emperor mainly encompass understanding the Great Dao, governing the nation, and nurturing the people. Although they also contain some cultivation content, their upper limits are not high.
The most powerful part is setting up an altar to summon a dragon soul as the guardian dragon of the nation using the celestial fate of the Great Ming. It would have a temple built for it, receive worship, and be nourished by dragon qi for cultivation. There is also a part in the sacrificial process that teaches the dragon soul how to cultivate and grow stronger.
