However, before this, some preparations are still required. The Undying Celestial Yin Golden Core Formation Technique given by Han Tianxing is not merely a method; there are other preparations needed. The primary reason is that the Celestial Yin Qi is distributed underground and is quite dispersed. This is also why a Spirit Gathering Array needs to be set up to cultivate the Celestial Yin Demon Blood Medicine.
If one wishes to form a core, the Spirit Gathering Array is simply not enough. A Tier Three Lower Grade Spirit Gathering Array would take at least ten years to gather the Celestial Yin Qi to a concentration dense enough for core formation, even with a conservative estimate.
Using a Tier Three Middle Grade Spirit Gathering Array can cut down on some time, but it would still take another two to three years. Therefore, Wen Jiu plans to use the Celestial Yin Qi-Eating Technique from the Undying Celestial Yin Golden Core given by Han Tianxing.
