C331 Calling the Wind and Summoning the Rain

What was the Grand Celestial Master?

Observing the Heavenly Dao and observing the actions of the heavens. One could reach the peak of the mortal immortal realm and enforce justice on behalf of the heavens.

Chu Hen, of course, was not at the peak of the mortal immortal realm. Even "Observing the Heavenly Dao and observing the movements of the heavens" was a little difficult. However