阳炼阴销举世稀
炼阳魂，销阴质也。炼阳销阴之法，天真皇人传黄帝三一之诀，此其道也。若神气相合，阳自
炼，阴自销。此皆自然之理，阴阳使其然哉。《黄庭经》云∶玄元上一魂魄炼，其理至所至玄。人罕得知
其深奥，故曰∶举世稀也。
灵文妙诀好遵根据
灵文，金简之书。妙诀，乃三一之法。此皆起归秘藏，飞入玄都。非乎至人，不传斯道。炼阳销阴
之理，化本虚无之机遇，云凡人何所至矣。
阳缘躁动难拘系
欲拘系者，理不偏取，道可双全，匪羁孤而成妙用也。玄刚云∶凡人余阳一分则不死，余阴一分
则不仙也。
认取灵元上上机
灵元有上机，乃制躁动之枢要。太白真人曰∶玄机至则身存，机往则身丧也。
宫阙重重号玉都
玉都者，泥丸宫也。上丹田有九处宫阙，悉相通贯。故云∶宫阙重重也。
还丹成就处阳垆
还丹者，真精也。上丹田乃全阳之宫，独贮还丹之所。人皆有之，故云成就处阳垆也。
通神夹脊为衢道
此宫有二条脉，夹脊降至下丹田气海，以通真精，点化和气而应脱泄者也。
下应关元事不虞
关元者，乃下丹田脱泄精气之关口也。若人交感阴阳，则真精降下至关口。点和气变为凝精，
以应神用。盖此关乃百聚之口，通诸脏腑及四肢筋脉，如藕丝窍气化之所，故号关元也。上若应下而道
者以为不虞矣。
Yang Refines Yin, Yin Dissolves: Rare in the World
Refining the Yang Soul and dissolving the Yin Substance. The method of refining Yang and dissolving Yin was transmitted by Tianzhen Huangren (Heavenly True Imperial Person) to Huangdi (Yellow Emperor) as the secret of "San Yi" (Three Ones); this is the Dao. If Shen (Spirit) and Qi (Vital Energy) combine, Yang naturally refines itself, and Yin naturally dissolves. These are all principles of nature, caused by Yin and Yang to be so. The *Huangting Jing* (Yellow Court Classic) states: "Xuan Yuan Shang Yi refines the Hun and Po souls"; its principle is extremely profound and mysterious. Few people know its profundity, hence it is said: "Rare in the world."
Spiritual Texts and Wondrous Secrets: Good to Follow as Basis
"Spiritual Texts" refer to books on golden slips. "Wondrous Secrets" refer to the method of "San Yi" (Three Ones). These all originate from hidden stores and fly into Xuan Du (Mysterious Capital). Unless one is a Zhiren (Perfected Person), this Dao is not transmitted. The principle of refining Yang and dissolving Yin transforms based on opportunities from emptiness and non-being; what realm can ordinary humans reach?
Yang Fluctuates Restlessly, Hard to Restrain
Those who wish to restrain and bind [Yang] should understand that the principle does not lie in partial selection, but the Dao can be complete in both aspects; it is not through isolated binding that wondrous functions are achieved. Xuangang stated: "If an ordinary person retains even a fraction of Yang, they will not die; if they retain even a fraction of Yin, they will not become immortal."
Recognize the Supreme Mechanism of Lingyuan
Lingyuan possesses a supreme mechanism, which is the key to controlling restlessness. Taibai Zhenren said: "When the Xuanji (Mysterious Mechanism) arrives, the body remains; when the Xuanji departs, the body perishes."
Palaces Layer upon Layer Called Yudu
Yudu refers to the Niwan Palace (Cinnabar Field of the Upper Dantian). The Upper Dantian has nine palaces, all interconnected. Hence it is said: "Palaces layer upon layer."
The Place Where Huan Dan is Achieved is the Yang Furnace
"Huan Dan" (Returning Elixir) refers to True Essence (Zhenjing). The Upper Dantian is the palace of pure Yang, the sole place storing the Returning Elixir. Everyone possesses it, hence it is called the "Place where the Yang Furnace is achieved."
Connecting Spirit Through the Spine as the Thoroughfare
This palace has two meridians descending from the夾脊 (Jiaji / Between the Shoulders) to the Qihai (Sea of Qi) in the Lower Dantian, to connect with True Essence, point out and harmonize Qi, and respond to leakage [of essence].
Responding Below to Guanyuan, No Worries
Guanyuan refers to the gate in the Lower Dantian where essence and Qi leak. If humans engage in yin-yang interaction, True Essence descends to this gate. Harmonizing Qi transforms into condensed essence, responding to spiritual function. This gate is the convergence of hundred vessels, connecting various zang-fu organs and tendons and vessels of the four limbs, like the pores of lotus roots where Qi transformation occurs, hence named Guanyuan. If the upper responds to the lower following the Dao, there will be no worries.