These three pill formulas are for Qi Gathering Pills, Yu-Yuan Pills, and Yu-Ming Pills. The Qi Gathering Pill is for cultivation, the Yu-Yuan Pill is for restoring spiritual power, and the Yu-Ming Pill is for healing injuries.
Among them, the Qi Gathering Pill and the Yu-Yuan Pill are used during the Qi Refining Stage. Once a cultivator breaks through to the Foundation Establishment Stage, the spiritual power in their Dantian transforms into true essence, at which point they must use Pei-Yuan Pills and Fu-Yuan Pills for cultivation.
As for the Yu-Ming Pill, it can heal injuries for those below the Nascent Soul Stage. In the past, if he had possessed a Yu-Ming Pill when injured, it would not have taken so long for him to recover; a single pill would have healed him completely in half a day at most.
Chapter 163