Whoosh!
A faint sense of weakness suddenly spread through his perception.
Wei He's vision blurred, all his senses rapidly receded, and in the blink of an eye, he had withdrawn from the super-sensory state and returned to ordinary reality.
Before him was still the sacred artifact crystal, the Holy Liquid within it being absorbed by his Returning True Force.
Yet the mental strength that had been fairly full moments ago now felt hollowed out, leaving him exhausted and drowsy.
Wei He took out some gel and plugged the hole drilled into the sacred artifact. Then he sat cross-legged and began cultivating the Mysterious Lock Skill.
He had now trained the Mysterious Lock Skill to the tenth level, which happened to correspond to the Complete Purity Fifth Step.
In truth, the Mysterious Lock Skill had only twelve levels in total, and at its peak, it could only be cultivated to the Complete Purity Seventh Step.
After that, one would need to cultivate the Mountain Lock lineage's higher-level cultivation art—or rather, the Mysterious Lock Skill's further advancement.
But Wei He had only reached the Complete Purity Fifth Step. The Complete Purity Seventh Step was still far away, so there was no need to consider that yet.
All he needed to consider was breaking through swiftly, then shattering Eldest Senior Sister Yuan Du Zi's blockade and returning to the sea surface.
After coming into contact with the level of Bone Corroding Wind, true qi of the Bone Corroding level began streaming endlessly into Wei He's body.
Whichever level one could perceive, one could absorb the higher-level true qi from that level.
That was the key to the True Force system.
Put simply, the True Force system relied on super-sensory perception and the true qi of the outside world.
The Returning True Force throughout