Qi Refining Lineage, Hundred Days Spiritual Transformation, Cultivate Jade Bones, Constructing the Dao Embryo, gathering the Golden Core, Qi Refining into Spirit, to this point essence, qi, and spirit all reach Perfection, then entering the Returning to Void Realm, Hold the One and Keep the Prime, becoming a Pure Yang Primordial Spirit, stepping into Dao Integration.
Entering Dao Integration, after enduring a hundred calamities, one can finally become a Heavenly Immortal, the hardships one must endure during this process are unimaginable.
Speaking of the difficulty of cultivation, Qi Refining is actually far more challenging than the Immortal Path, not only demanding extremely high comprehension but also possessing a lofty threshold for entry; without sufficient talent, it is immensely difficult to accomplish anything in Qi Refining.