Although Ding Shuying had embarked on the path of immortality, her cultivation progressed painfully slowly. She remained unable to achieve Foundation Establishment, leaving Ding Yushan and his wife deeply troubled.
If this continued, even in the Immortal Spirit Realm, with its abundant spiritual energy, their daughter would live no more than two or three hundred years. Neither of them could accept that.
After carefully examining Ding Shuying, they concluded that, aside from her aptitude, the medicinal potency required by the supplementary method of her Body Refining Technique might also be insufficient.
When practicing this Body Refining Technique, she needed to soak her body in a medicinal solution refined from spiritual plants before beginning her cultivation. Only then would it produce decent results.
Otherwise, practicing the technique alone required exceptional talent and a strong physique. They had been using the supplementary method to prepare medicinal solutions for Ding Shuying's cultivation.
The Body Refining Technique actually recorded several ways to prepare medicinal solutions for use alongside it. Ding Yushan had chosen a common method that used spiritual plants.
Those spiritual plants were far from cheap, and purchasing them required the couple to spend a considerable sum of spirit stones. Preparing a better body refinement solution was more complicated and expensive.
Several of the principal spiritual plants in the existing formula would have to be selected and used only as supplementary ingredients, while the main ingredient would be replaced with the blood essence of a certain demon beast. This would improve the effects threefold or more.
The reason it was described as threefold or more was that the other methods listed later in the technique branched into several variations. Different demon beasts' blood essence produced different improvements, and even the poorest blood essence listed in the formula could triple the effects of cultivation.