三極至命荃蹄
三關總叙

三關總叙

三關總叙

以精炁神爲三關者，内丹之三關也。

以形炁神爲三關者，外丹之三關也。

以鼻手足爲三關者，合内外之三關也。

End of chapter
三要總叙九鼎總叙

Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji

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