Using spiritual power to refine weapons was easier and more precise than using forging methods. However, Wen Wenhai and the others couldn't learn it, so they could only use forging methods because forging methods were much simpler.
The forging method was a very primitive method of refining equipment, but this method could be seen in all aspects. Even if you used your spiritual power to refine equipment, you could not do without the help of the forging method. This was a relatively simple refining method.
Zhao Hai wanted to teach Wen Wenhai and the others how to use the forging method to refine weapons. This way, even if he stopped refining weapons in the future, as long as someone learned this method, they could still make weapons for them to use. After all, Zhao Hai was a commander, not a blacksmith. It would be a waste if he was always in charge of refining weapons.
