Refining a mid-grade Pill was not easy since it was not as simple as refining Heart-nourishing Liquid. It was absolutely required to mix all the materials together so that the Pill Principle would first converge, then the Pill Qi would form, followed by the condensation of the Pill Pattern, and finally, a Mystical Pill is produced.
"Pill Principle" referred to the principle behind the forming of a Mystical Pill. No principle, no pill.
Pill Principle was similar to the folk prescriptions used by people around the world. The attributes and quantity of the medicine were a part of Pill Principle.
If the materials were recklessly paired up, the materials would go to waste and the Pill Principle would not form. In the end, there would only be pill remnants.
