After handling Haotian and obtaining the Heavenly Court and Haotian Mirror, Minghe cheered up a bit. The information that he had gotten from Haotian's memory also greatly helped, especially the information on refining Spiritual Treasures of Chaos. Minghe's deduction had gone a little astray. Now he could use this information to correct his own.
Back in the days that he spent in the River between Heaven and Death, Minghe was always practicing or studying the refinement of the Spiritual Treasures of Chaos, especially refining a complete Chaos limit. That was the hardest part, and thanks to the Magical Tao Mirror, Minghe managed to refine the Chaos limit in merely 10,000 years.