Ling Hua realized that she previously fell into a misconception, thinking Yan Qing was exceptionally talented and arrogant enough to manipulate the "Book of Prophecies" to deduce the nation's destiny. But upon closer thought, he wasn't really that kind of person.
Yan Qing was born into Marquis Duanjing's residence; the Yan Family has been loyal to the Imperial Family for generations, carrying heavy responsibilities. Yan Qing received training from his grandfather and father since childhood, and loyalty to the Imperial Family is ingrained in his bones. The "Book of Prophecies" should not be recklessly used to deduce the nation's destiny, lest a mistake occurs, leading to inadvertent misfortune, and destruction of the nation's fate. If no one instructed him to do so, he would likely, out of curiosity, still resist touching it.
So, it made sense that the Kunlun Elder measured his fate before dying, discovering his death trap, and instructed him to read the "Book of Prophecies".
