In Shu Mountain, a person had cultivated from a common man to a Heavenly Immortal and ultimately achieved ascension. The initial practice was divided into two parts, one part was Inner Strength and the other was Outer Skills.
Inner Strength referred to internal cultivation, achieving both a marvelous form and spirit through methods like Qi Cultivation and Refining Spirit.
The phrase "using spirit to refine form produces a portion of Yang energy, and using form to refine spirit reduces a portion of Yin energy" was the method of internal cultivation, specifically the Alchemy Dao.
Outer Skills involved external cultivation, accumulating merit through acts of goodness which was not merely performing charitable deeds. More critically, it was about the tempering of one's nature in this process, the Dual Cultivation of Life and Nature, only considered complete upon achieving Perfection.
