The peak of power was known as God's Domain. It entraps the Abyss to keep death to a minimum by isolating the strongest in one place.
That method was achieved so that the strongest could save their comrades. But, that had long been abandoned.
The formation of qi that keeps everyone inside was no longer needed.
A step forward was needed.
So, at that moment, Chang Ping felt freedom from her wings. She abandoned the requirement of a God's domain and allowed her power to come out without any formation.
But, without any formation, the power of the domain could not be manifested. The Formation was not only there to keep the enemy inside but also to help in the manifestation of their souls into reality itself.
Chang Ping abandoned the notion. She circulated her qi and allowed it to enter her body. The basis of cultivation was to internalize qi to pursue eternity.