Ling Han had obtained some Saintly medicine, but at his present cultivation level, he was still not qualified to refine it into alchemical pills yet. Thus, he decided to settle for the next best thing. He would not refine it into alchemical pills. Instead, he directly extracted the divine essence from within through heating.
The effects from this were definitely inferior to an alchemical pill. There would definitely be a certain amount of wastage, but Ling Han merely wanted to improve his abilities as soon as possible, so he did not bother about it.
If he cooked this outside, this would lead to too much commotion. The divine essence of the Saintly medicine was not something that Ling Han could conceal. If he actually drew the attention of the Saints, should he share with them or not?