C1122 Third Prince's Escape
This was a very dangerous action, similar to the way Spiritual Weapon were detonated.
This kind of meridian circulation law required the zhenqi to be withdrawn and placed in the dantian to nourish the Buddhist zhenqi. Thereafter, it would be ready and then it would erupt in one go.
As a result, regardless if it was the Buddha Palm of Mercy's true qi or power