章 137: Chapter 137: Refining Spirit to Emptiness!

Following the old man's method, Zhou Yu quickly merged the six types of Spiritual Medicine into a medicinal liquid.

Then, Zhou Yu drank the liquid in one gulp and immediately began to circulate his cultivation technique to neutralize the medicinal power.

He was currently in the great Innate realm.

The so-called great Innate realm is "Qi Refinement into spirit refining."

When "Qi Refinement into spirit refining" was cultivated to the extreme, one could break through the Innate realm and reach the state of "Transcending the Ordinary."

Zhou Yu's cultivation had already reached the pinnacle of "Qi Refinement into spirit refining," but he did not plan to break through to the "Transcending the Ordinary" realm just yet.

Because the old man had once told him,

After "Qi Refinement into spirit refining," if one used a special method, one could further cultivate into "Refining Spirit to Emptiness."