It was not easy to integrate an emotion or emotion into a set of martial arts. If one could integrate one's own emotion into the martial arts, it would greatly increase the strength of the martial arts. If a set of martial arts originally had a soul and emotions, the situation of their soul was like the gunpowder in a bomb. No one could see it. Moreover, the gunpowder had no fuse, so it could not exert its power.
If a person were to integrate his emotions into a set of martial arts, it would be like installing a fuse on a bomb. As long as the fuse was lit, the bomb would produce an amazing explosive force.
This method of integrating emotions into martial arts was actually a kind of Dao. What Zhao Hai needed to do now was to turn these cold, dark, and desperate emotions into a Dao core. With this Dao core, he could add these emotions into any martial arts in the future, which would greatly increase the power of the martial arts.