Luo Zheng seemed to have displayed the first stage of Strength Tracing, so Han Jiu Yi did not find it particularly remarkable.
Since he had mastered so many Divine Daos and could even cultivate the Purple Qi Divine Dao, it was not especially difficult for him to grope out the most basic application of Strength Tracing through the Strength Divine Dao.
However, comprehending the second stage on his own was rather difficult. It required an extremely profound understanding of strength, yet the strength within the Eight Dao Platforms was fundamentally insufficient to support such an insight. That was why Han Jiu Yi was naturally astonished.
Astonishing as it was, it still fell within Han Jiu Yi's range of acceptance. But for Luo Zheng to actually make that long sword shaped from strength fly out of his body—that was simply unreasonable!
Not to mention Luo Zheng—even a Great Perfection True God who had fully gathered the Divine Platform Nine Stars would be unable to accomplish this without constructing a cosmos.
Strength that had left the body was like a source without roots. It would wither away in an extremely short time, and it could not be controlled at all... That was also why strength was not valued very highly in the God Domain.
At Han Jiu Yi's level, she could bring strength to its limits after using World Crossing Divine Power. But Saints often had no need for pure strength. Thus, after Nightingale Saint constructed the God Refinement Forbidden Ground, he had gone even further against convention and discarded the Nine Stars, storing all the Strength Origins in a great pool and occasionally giving some away...
When one's cultivation was low, one could not use it. Once one's cultivation was high, one had no use for it. That was the awkward