She knows its meaning, understands its principles, and can practice its use.

But he felt that he would never be able to break through this framework. No matter how wise his father is, he still couldn't cure Li Guo's ailment, and he couldn't even stop it from deteriorating. In the end, he was forced to retreat.

No matter how amazing and talented he is in the eyes of others, if he can't escape this framework, he still can't heal Li Guo, or even himself.