男女未交之时，女有五至者∶面上赤起眉靥乍生，心气至也；眼光涎沥斜视送情，肝气至也；低头不语鼻
中涕出，肺气至也；交颈相偎其身自动，脾气至也；玉户开张琼浆浸润，肾气至也。五气俱至，男子方与之合
而行九浅一深之法，则情洽意美无不成胎矣。
交合之时女有五伤∶一阴户尚闭不开不可强刺，刺则伤肺；二女兴已动男或不从，兴过始交，则伤心致经
不调；三以少阴而遇老阳，玉茎不坚举而易软，女情不畅则伤肝，必至盲目；四经水未尽，男强逼合则伤肾；
五男子酒醉交战，茎物坚硬久刺不止，女情已过，阳兴不休则伤腹。五伤之候安得有子？
娇吟低语心也，合目不开肝也，咽干气喘肺也，两足或屈或伸，仰卧如死脾也，口鼻气冷，阴户沥出粘带肾也，五
者快美之极，男子识其情而采之，不独有子且有补助之益。
阴阳情质禀有不齐，精固者常迟，精不固者常速。迟者嫌速则犹饥待食及咽不能，速者畏迟则犹醉添杯欲
吐不得。迟速不侔，何以成胎？故以迟遇速宜出奇，由径勿逞先声，以速遇迟宜静以自持，挑而后战，则适逢
其会矣。
阳强阴弱则畏如峰虿，避如戈矛；阳弱阴强则闻而风靡，望尘而北。强弱相凌而势不能敌，何以受孕？然
抚弱有道，必居仁由义，务得其心，克强固难，非聚精会神安夺其魄？诚得此法以治之，则强不足畏，弱不足
虑矣。
男女尚未交合时，女子有五种情欲发动的表现：面部发红、眉间出现雀斑般的色泽，这是心气发动；眼神流盼、口角流涎、斜视传情，这是肝气发动；低头不语、鼻中流出涕液，这是肺气发动；颈部相靠、相互依偎、身体自然摆动，这是脾气发动；阴户张开、津液湿润，这是肾气发动。五脏之气全部发动后，男子才与她交合，并采用“九浅一深”的技法，那么情意融洽、美感十足，没有不成孕的。
交合之时，女子有五种伤害：一是阴户尚且紧闭未开，不可强行刺入，强行刺入则伤肺；二是女子兴致已动，男子却不顺应，待兴致过后才开始交合，这会伤心导致月经不调；三是女子年少（少阴）而男子年老（老阳），阴茎不坚硬易疲软，女子情欲不畅会伤肝，必然导致失明；四是月经未净，男子强行逼迫交合，这会伤肾；五是男子酒醉行房，阴茎坚硬久刺不止，女子情欲已过而阳气仍亢奋不休，这会伤腹。有了这五种伤害的情况，怎么能有子嗣呢？
娇声呻吟、低声细语是心的表现，闭目不睁是肝的表现，咽干气喘是肺的表现，双腿或屈或伸、仰卧如死状是脾的表现，口鼻气息冰冷、阴户流出粘液是肾的表现，这五种情况快感达到极致，男子若能识得其中情致并加以运用，不仅能有子嗣，还有滋补身体的益处。
阴阳性情体质禀赋各不相同，精气固摄者通常反应迟缓，精气不固者通常反应迅速。反应迟缓的人嫌弃对方太快，就像饥饿等待食物却难以吞咽一样；反应迅速的人畏惧对方太慢，就像醉酒想添杯呕吐却吐不出来一样。快慢不均，怎么能成胎呢？所以以迟缓应对迅速，应当出奇制胜，不按常规路径，不要先声夺人；以迅速应对迟缓，应当保持安静自我控制，挑逗之后再行动，这样才能恰好契合时机。
阳气过强而阴气虚弱，女子会像害怕蜂蝎毒虫一样恐惧，像躲避戈矛一样逃避；阳气虚弱而阴气过强，女子听到动静便如风吹草倒般顺从，望见尘土便向北败退。强弱互相欺凌而势均力敌无法抗衡，怎么能受孕呢？然而安抚弱势是有方法的，必须遵循仁义之道，务必赢得对方的心；克服强势很难，除非聚精会神才能安定其魂魄？如果确实掌握这种方法来治疗，那么强势就不值得畏惧，弱势也不值得忧虑了。
Before sexual intercourse, a woman exhibits five signs of arousal:
Redness on the face and sudden appearance of freckles-like spots on the eyebrows indicate the arrival of Heart Qi (心气);
Glistening eyes with saliva at the corners, looking askance to convey affection, indicate the arrival of Liver Qi (肝气);
Lowering the head without speaking and nasal discharge, indicate the arrival of Lung Qi (肺气);
Necks intertwined, leaning against each other, with the body moving automatically, indicate the arrival of Spleen Qi (脾气);
The vulva opens and jade-like fluid moistens, indicate the arrival of Kidney Qi (肾气).
When all five Qi arrive, only then should the man engage in intercourse with her, employing the technique of "nine shallow and one deep thrusts." In this manner, emotions will harmonize, beauty will be achieved, and conception will surely occur.
During intercourse, a woman may suffer five types of injury:
First, if the vaginal orifice is still closed and not open, do not force penetration; forcing it injures the Lungs.
Second, if the woman's arousal has already risen but the man does not comply, and intercourse begins only after the excitement has passed, this injures the Heart, leading to irregular menstruation.
Third, if a young woman (Shao Yin) encounters an old man (Lao Yang), and the penis is not firm and becomes soft easily, the woman's unfulfilled desire injures the Liver, inevitably leading to blindness.
Fourth, if menstrual blood has not yet ceased and the man forces intercourse, this injures the Kidneys.
Fifth, if the man engages in intercourse while drunk, with a hard penis penetrating for a long time without stopping, while the woman's desire has passed but the male yang excitement continues unabated, this injures the Abdomen. How can there be children under these five injuries?
Moaning softly and speaking lowly are manifestations of the Heart; closing the eyes and not opening them are manifestations of the Liver; dry throat and panting are manifestations of the Lungs; legs bending or extending, lying supine as if dead, are manifestations of the Spleen; cold breath from mouth and nose, and sticky discharge from the vagina, are manifestations of the Kidneys. These five states represent extreme pleasure. If the man recognizes these conditions and utilizes them appropriately, he will not only have children but also gain health benefits.
Yin and Yang temperaments and constitutions vary in endowment. Those with solid essence often respond slowly; those with unstable essence often respond quickly. The slow responder dislikes speed, akin to hunger waiting for food but unable to swallow; the quick responder fears slowness, akin to being drunk wanting to add another cup but unable to vomit. When speed and slowness are unequal, how can conception occur? Therefore, when slow meets fast, one should employ unexpected strategies, avoid conventional paths, and not boast beforehand. When fast meets slow, one should remain calm and self-possessed, teasing before engaging in battle, so that timing coincides perfectly.
If Yang is strong and Yin is weak, fear is like facing hornets and scorpions, avoidance is like dodging spears and halberds; if Yang is weak and Yin is strong, submission is like wind blowing through grass, retreat is like fleeing from dust clouds. When strength and weakness clash and neither can overpower the other, how can pregnancy occur? However, soothing the weak requires a method: one must dwell in benevolence and follow righteousness, striving to win the heart. Overcoming the strong is difficult; unless one gathers spirit and focuses the mind, how can one seize their soul? If this method is truly mastered for treatment, then strength need not be feared, and weakness need not be worried about.