奧矣！最上一層，乃無作而亦無為。還丹七返，因有動而方有靜。上德以道全其形，斯純乾之未破；下德以術延其命，乃撅坎之已成。是以用陰陽之道，即依世法而修出世之法；效男女之生，必發天機而作泄天之機。方其性命以雙修，須仗法財而兩用。先結同心為輔佐，次覓巨室以良圖。然欲希至道，須密叩玄關。擇善地慎事之機密，置丹房器皿之相當。安爐立鼎，譬內外兩個乾坤；煉己築基，固彼我一身邦國。緊關對境忘情，憑銳氣之勇猛；大抵煨爐鑄劍，借金水之柔剛。若運用，若抽添，遇險而須當沐浴；若鼓琴，若敲竹，逢爭而便宜守雌。百日功靈，曲直而能應物；一年功熟，追攝而已由心。能盜彼殺中之生氣，以點我陽裏之陰精。玉液金液，一了性而一了命；二候四候，半在坎而半在離。始也將無入有，已見龍居虎位；終焉流戊就己，始知虎會龍宮。要知藥物之老嫩，在辨水源之清濁。煉己待時者，務待陽生於赤縣；遇急臨爐者，必須癸動於神州。若觀見龍在田，須猛烹而極煆；忽聞虎嘯出窟，可倒轉而逆施。所謂火逼金行出坤爐，故名七返；金因火煉歸乾鼎，號曰九還。還者，乾所失而復得之物；返者，我已去而複來之真。殊不知，須則生人生物，逆者成仙成佛。雖分彼我，實非閨丹禦女之術；若執一己，豈達鵬鳥圖南之機。坎中一點黑鉛，號曰先天，非同類而終不能得離裏七般硃汞，無真種而片刻難留。是以假乾坤，立爐鼎，覓太乙所含之真氣，賴陰陽作筌蹄，求水府所蘊之玄珠。趨踹時卒，補我乾之一缺；俄然間已，返彼坤之六虛。到此心歸神室，位列天仙，丹落黃庭，千靈舒泰。上帝嘉贊，天地鹹驚。抱元守一，溫養十月，神有象調神。面壁坐忘，九載體無形。斯其道術造端，似行邪而實正；就中火候始末，如出奇而用兵。鉛與汞，無丙叟，東西間隔；嬰與奼，非黃婆，咫尺參差。諳緩急，慮急凶，在匠手，以斟酌，明進退，知止足，豈愚昧而能為。認消息，如海潮之有信；測造化，比日月之盈虧。三日月出庚，乃一陽生於坎位；十五月圓甲，則六爻周以乾元。劈金竅，鑿混沌，露老莊之肺腑；明橐籥，飲刀圭，吐平叔之心肝。遂煙霞明悟之友，發龍虎珍藏之秘。各尋火候，早餌黍珠，閬苑玄圃，他日有冀。
This is the source article for 'jade fluid'.
So if you really want to understand what 'jade fluid' is, you must read this article.
Just like those who want to understand Arhats must read the Agama Sutra.
Those who want to understand Yin and Yang must read Can Tong Qi.
Those who want to understand 'jade fluid' must read Lu Zu Huanghe Fu.
這是‘jade fluid’的來源文章。
所以如果要真的了解什麼是‘jade fluid’，就一定要看懂這篇文章。
就像想了解阿羅漢的人一定要看阿含經。
想了解陰陽的人一定要看參同契。
想了解‘jade fluid’的人就一定要看呂祖黃鶴賦。
「玉液金液，一了性而一了命；二候四候，半在坎而半在离。」
Jade liquid and gold liquid, one end of nature and one end of life; two waiting and four waiting, half in the threshold and half in separation.
Google should translate it into something very strange
google應該翻譯成很奇怪的東西了
Don't take Jade liquid too high, Jade liquid is black liver light.
Gold liquid is rabbit marrow light.
Wuganguang（black liver） can appear just by practicing Min-Gong.
Rabbit marrow light must practice Xin-Gong to appear.
An ancient Chinese hour has two hours and can be divided into six segments.
That is to say, as I said before, it takes at least two hours to practice the basic alternation of yin and yang thoroughly.
During the two hours, about two periods were spent on the evolution of the black liver, and four periods were spent on the evolution of the rabbit marrow.
The black liver comes from Kan. Rabbit marrow comes from Li.
不要把Jade liquid看得很高段，Jade liquid就是烏肝光。
gold liquid就是兔髓光。
烏肝光就是練命功就能出現。
兔髓光必須練性功才能出現。
一個中國古代的時辰有兩個小時，可以分成六段。
也就是我之前說過的，基本的陰陽交替要練透，至少必須要兩個小時。
這兩小時的時間，大概有兩段的時間花在烏肝演化，有四段時間花在兔髓演化。
烏肝來自於坎。兔髓來自於離。
「始也将无入有，已见龙居虎位；终焉流戊就己，始知虎会龙宫。」
At the beginning, there will be no entry, and I have seen the dragon occupying the position of the tiger; in the end, I know that the tiger will be the dragon's palace.
I don't know what strange things this paragraph will be translated by Google.
In the beginning, from nothing to existence, what we talked about was the state of yang.
So the next paragraph says that the dragon has been seen standing in the position of the tiger.
The dragon is black liver.
The state of black liver is yang.
Finally, it will change from yang earth to Yin earth.
Wu means Yang earth. Gi is Yin earth.
To transform into yin earth is to enter the state of yin.
Only then did one know that the tiger met in the Dragon Palace.
The tiger is the marrow of the rabbit.
Rabbit marrow is in a Yin state.
So we need to know what Lu Zu is talking about in order to know what is Yuye(Jade liquid) and the timing of Yuye's release.
It definitely doesn't happen when the qi enters the bone marrow.
不知道這段會被google翻譯成什麼奇怪的東西。
一開始的時候從沒有到有，講的就是陽的狀態。
所以下一段說已經看到龍站在虎的位置。
龍就是烏肝。
烏肝的狀態就是陽。
最後會從陽土轉變成陰土。
戊就是陽土。己就是陰土。
轉變成陰土就是進入陰的狀態。
才知道虎相會於龍宮。
虎就是兔髓。
兔髓是陰的狀態。
所以我們要知道呂祖在說什麼，才能知道什麼是玉液，才能知道玉液發的時機。
絕對不是氣入骨髓的時候發生的。