Fei was silently refining spiritual liquid to fill up his dantian with true energy. If his talent was unlocked, then he would've completely refined pills into true energy, but with his current dantian situation, he can't do so.
The world of cultivation is full of mysteries, the human body has unlimited potential to grow. But the basis of modern human cultivation comes from three basic concepts.
The concept belongs to the specification used to create cultivation art for a person. Different talents use different cultivation arts, some arts might be specific to elements, some might be specific to a certain weapon, and some might be specific to certain mythical beasts.
Such as Mo Wen, who has sword bloodline and sword cultivation art. They complimented each other and so his sword cultivation realm rises very fast. Current Mo Wen was completely invulnerable within Mortal Realm because he has reached Sword Soul Realm.
