"Very well. I passed down the Golden Pill Great Dao to the Human Race. The Golden Core Dao includes both outer and inner alchemy. What I taught you before was also the method of outer alchemy."
"Teacher, what is the method of inner alchemy?"
"The method of inner alchemy seeks within oneself. Spirit and qi are both refined, cultivating both nature and life."
"Teacher, I wish to learn!"
Xuandu was thrilled. He had finally found a path forward for the Human Race. With this method, how many great cultivators could the Human Race produce?
"If you wish to learn it for the sake of the Human Race, then forget it. This method requires the support of outer alchemy, and its demands for medicinal pills are extremely high."
Although Laozi did not wish to discourage Xuandu, the Golden Pill Great Dao was only suited to members of the Human Race below the Golden Immortal realm. After reaching the Golden Immortal realm, without sufficient opportunities, there would be no path to seek the Dao.
"Xuandu, you should not be concerned with the Human Race now. You should be concerned with yourself. The path of the Human Race cannot be forged by you alone."
That was right. He was only a Golden Immortal now. He had not even walked the road ahead himself, so how could he guide the Human Race? Laozi's words awakened Xuandu.
"Teacher, Xuandu knows his mistake!"
Xuandu felt that he should honestly study under his teacher and raise his cultivation first.
Only after seeing that Xuandu understood did Laozi begin expounding the Dao to him.
"Let the spirit embrace the qi, and the qi embrace the spirit. Let spirit and qi embrace one another, secured within the sea of qi..."
The method of inner alchemy emphasized the unity of