Refining the Five Qi in one's chest naturally required some care: one had to select five-element treasures and fuse them into the five organs.
The more powerful the treasures, the stronger the Five Elements Body one could forge.
There were also particular considerations when choosing the five treasures.
Generally speaking, when forging a Five Elements Body, one would choose the element whose laws one had comprehended most deeply as the primary law.
For example, someone might have fully mastered the laws of fire while only having a basic grasp of the other laws.
In that case, he would choose a more powerful fire treasure and somewhat weaker treasures of the other four elements, forging himself into a fire-aspected Five Elements Body. Fire would be the dominant element, with metal, wood, water, and earth slightly weaker in the cycle.
However, spiritual roots, spiritual materials, and even spiritual treasures of the five elements were not easy to find. Some Golden Immortals spent their entire lives without finding a single five-element treasure, let alone gathering all five.
Under such circumstances, some Golden Immortals struck out on a different path, choosing to refine the Five Qi in their chests by gathering the five-element spiritual energy between heaven and earth.
The advantage of this method was its low risk: as long as one was willing to invest the time, one could eventually finish the refinement. The downside was that such Grand Unity Immortals were the weakest of all Grand Unity Immortals.
Of course, even the weakest Grand Unity Immortal could kill a Golden Immortal with a casual wave of his hand.
Given Hao Shuai's personality, he naturally disdained refining the Five Qi in his chest with five-element spiritual energy.
As for five-element spiritual treasures, Hao Shuai did have some, but they were all acquired treasures,