Doubts and Springfield History

....

Shin stayed in his room for half a day to read all of the records regarding the three systems of combining Martial-Arts and Mentalism.

And when he is done reading them, he started organizing what he had learned so far. "Combining Internal Qi and Mental Energy is not that hard but not so easy either."

"First, the Dual-Practioner needs to meet the three major requirements before achieving the combination of the two Forces. And those are the compatibility, quality, and equality."

"Comparability means the Internal Qi and Mental Energy needs to complement each other. Both of them need to have similar natures, or at least, they can't be in conflict with each other."

"Quality stands for the Rank of the two Forces. Higher Martial-Arts produce and nurture a high-quality Internal Qi compared to ordinary Martial-Arts. Same goes for common and Profound Mentalism."