641 Against Heaven and Earth

The perception of the mind towards its surroundings continued to expand, not only externally, but also in its control over the internal elements and the physique, becoming increasingly refined.

In the Mountain Sea Realm, the cultivation of essence, energy, and spirit held equal importance, with none being dispensable while occupying the same position.

However, the mind, to some extent, resembled the human brain, controlling all the forces throughout the body.

Even during the Body Tempering realm, if one wished to break through to the realm of Aperture Tempering realm, the mind had to pass through the threshold; otherwise, one could not even touch the breakthrough.

From the Aperture Tempering realm to the Combined Aperture Tempering realm, the mind was the key factor determining how much power one's martial arts could unleash.