But the Power of Rules is ethereal and elusive, how can one directly refine it...
"Let's put it this way, if you want to refine the Rule of Fire, you can find a place where the Fire Element is active. There's a lava zone three levels down from this floor. You can use such environmental conditions, or Heavenly Materials and Earthly Treasures, or even elixirs refined by humans to assist in the refining."
As he spoke, the Thunder God noticed the hesitation in Su Mu's eyes, immediately steeling himself to continue speaking.
"Of course, if there are corresponding refining secret techniques, it would make the process easier. Unfortunately, such secret techniques are so valuable that most have been lost."
Hearing this, a gleam of wisdom burst from Su Mu's eyes. He wasn't foolish; the Thunder God's words were so explicit that he understood the Thunder God's intentions.
