Charcoal was different from Bonehead. Bonehead couldn't wait to impart everything he knew to Wang Zheng. As for Charcoal, he was a little silly and would want Wang Zheng to achieve enlightenment on his own most of the time.
The only pitiful thing was that Wang Zheng was really interested in learning more about spiritual power. However, Charcoal wasn't able to help him in this aspect. The Primordial Regression Technique could help to raise one's spiritual power, but it was mainly used in physical battles. Wang Zheng had always felt that he was lacking in something. However, it could also be because he had not reached the realm yet. Perhaps if he could achieve a breakthrough, he could further control spiritual power. Hopefully, he would at least be able to control his own Ability X and have complete micro control. This would significantly increase his battle abilities.