Perfect does not even need to be explained. It is simply perfect, without any flaws and blemishes, untainted, leading one to believe that this perfect type of foundation is in the realm of the myths after the Third Stage.
Apparently, history has seen Revolving Core Stage Cultivators and below with a perfect foundation. The usual indicator to a perfect foundation meant that one is able to cross four levels to fight! Able to easily kill a peak-level cultivator when at the low-level of a particular stage!
Davis imagined that to fight against opponents above three levels at the Eighth Stage, Princess Isabella's foundation had to be unblemished! This meant Princess Isabella was always keeping her advancements in either unblemished or flawless at the very least.
