In Yan Chihuo's view, Wondrous Fragrance Tower's strength was utterly ordinary. Though they had driven Qilin Manor's cultivators away, that was only because this was the Clear Heaven Kingdom, and Origin Core Stage cultivators such as Qi Yuan had not come in person. Otherwise, Wondrous Fragrance Tower would never have dared offend Qilin Manor. After all, Wondrous Fragrance Tower had no Origin Core Stage cultivator stationed there. Otherwise, Lady Tianxiang would not have needed to wait bitterly for ten years. She would only have needed an Origin Core Stage cultivator to barge into his cave dwelling and capture him.
Thus, the fact that Wondrous Fragrance Tower could produce such a flying carriage showed that its reserves were fairly abundant. This flying carriage was a Magic Treasure. Logically speaking, Dong Qian, with only Dao Foundation Stage cultivation, should have been utterly incapable of controlling it. There was only one possibility: this flying carriage had been made using the Soul Refining Art.
The so-called Soul Refining Art was a special method for refining Magic Treasures. Once a Magic Treasure was successfully refined through this method, the cultivator controlling it could leave a soul imprint within it. The advantage of this was that the Magic Treasure could be used by someone whose cultivation was insufficient.
When handing this Magic Treasure to a cultivator with inadequate cultivation, one merely had to leave a soul imprint on that cultivator as well. This Soul Refining Art was generally used for inherited Magic Treasures.
Some small and mid-sized forces, lacking worthy successors, used this method to avoid possessing Magic Treasures they could not wield. Before the owner of a Magic Treasure passed away in meditation, they would leave behind soul power, preventing a situation in which later generations had no soul imprint when using the Magic Treasure.