凡小产有远近，其在二月三月为之近，五月六月为之远，新受而产者其势轻，怀久而
产者其势重，此皆人之所知也。至若犹有近者，则随孕随产矣。凡今艰嗣之家，犯此者
十居五六，其为故也，总由纵欲而然。第自来人所不知，亦所不信。兹谨以笔代灯，用
指迷者，倘济后人，实深愿也。请详言之。盖胎云始肇，一月如珠露，二月如桃花，三月
四月而后血脉形体具，五月六月而后筋骨毛发生。方其初受，亦不过一滴之玄津耳。此
其橐 正无根据，根 尚无地，巩之则固，决之则流。故凡受胎之后，极宜节欲，以防泛
溢。而少年纵情，罔知忌惮。虽胎固欲轻者，保全亦多。其有兼人之勇者，或恃强而不败，
或既败而复战。当此时也，主方欲静，客不肯休，无奈狂徒，敲门撞户，顾彼水性热肠，
有不启扉而从，随流而逝者乎？斯时也，落花与粉蝶齐飞，火枣共交梨并逸，合污同流，
已莫知其昨日孕而今日产矣，朔日孕而望日产矣！随孕随产，本无形迹。盖明产者胎已
成形，小产必觉，暗产者胎仍似水，直溜何知？故凡今之 HT 家，多无大产，以小产之
多也。娶娼妓者多少子息，以其子宫滑而惯于小产也。今尝见艰嗣求方者，问其阳事，则
曰能战。问其功夫，则曰尽通。问其意况，则怨叹曰∶人皆有子我独无。亦岂知人之明产，
而尔之暗产耶？此外如受胎三月五月而每有堕者，虽衰薄之妇常有之。然必由纵欲不节，
致伤母气而堕者为尤多也。故凡恃强过勇者多无子，以强弱之自相残也。纵肆不节者多
不育，以盗损胎元之气也。岂悉由妇人之罪哉？欲求我方者，当以此篇先读之，则传方
之思，已过半矣。
九曰童稚，乃女子之时机也。方苞方萼，生气未舒，甫童甫笄，天癸未裕。曾见有未
实之粒，可为种否？未足之蚕，可为茧否？强费心力，而年衰者能待乎？其亦不知机也矣。
十曰二火，乃男女之阳机也。夫君火在心，心其君主也。相火在肾，肾其根本也。然
二火相因，无声不应。故心宜静，不静则火由欲动，而自心挑肾，先心后肾者，以阳烁
阴，出乎勉强，勉强则气从乎降，而丹田失守，已失元阳之本色。肾宜足，肾足则阳从
地起，而由肾及心，先肾后心者，以水济火，本乎自然。自然则气主乎升，而百脉齐到，斯
诚化育之真机。然伶薄之夫，每从勉强，故多犯虚劳。讵云子嗣，朴浓之子，常由自然，
故品物咸亨，奚虑后人？知机君子，其务阳道之真机乎？
凡是小产有发生时间的早晚之分，怀孕两三个月时发生的小产称为“近”，五到六个月时发生的称为“远”。刚受孕不久就流产的，病情较轻；怀孕很久才流产的，病情较重，这些都是人们所知道的。至于还有更早的，那就是随受孕随即流产了。如今那些难以生育的家庭中，犯这种错误的占五六成，其根本原因，总归是由于纵欲过度所致。但这点向来是人们不知道、也不相信的。现在谨以笔墨代替灯火，用来指引迷惑的人，如果能造福后人，实是我深深的愿望。请详细说说其中的道理。
大概胎儿刚开始形成时，一个月时像露珠一样微小，两个月时像桃花一样初绽，到了三四月后血脉形体才具备，五六月后筋骨毛发才生长。在刚刚受孕的时候，也不过是一滴珍贵的精液罢了。此时胎元正如风箱（橐）一般没有根基，根蒂还没有着落之地，固摄得好就能稳固，固摄不住就会流失。所以凡是受孕之后，极应当节制性欲，以防止精气泛溢流失。然而许多年轻人放纵情欲，不知忌惮。虽然有些胎元较弱的孕妇，保全下来的也很多。那些体力特别强盛的人，有的倚仗身体强壮而不泄精，有的即使泄精后又继续行房。在这个时候，女方主静，男方不肯停止，无奈那些狂徒，如同敲门撞户般强行索取，考虑到女性水性柔顺、热情肠热，难道有不打开门户而顺从，随着水流逝去的吗？这时候，落花与粉蝶齐飞，火枣与交梨并逸，同流合污，已经不知道是昨天受孕今天流产，还是初一受孕十五就流产了！随孕随产，本来没有明显的痕迹。因为明产是指胎儿已经成形，小产时必然会有感觉；暗产是指胎儿仍像水一样，直接溜走，哪里知道呢？所以如今那些难以生育的家庭，大多没有足月生产的孩子，是因为小产太多的缘故。娶妓女的人往往孩子少，因为她们子宫滑利，习惯于小产。我曾经见过那些难以生育来求方子的人，问他们的性功能，他们说能行房；问他们的持久力，说能尽兴；问他们的心情，则抱怨叹息说：“别人都有孩子唯独我没有。”又怎么知道这是别人的明产，而你的却是暗产呢？此外，如受孕三五月却经常堕胎的，虽然是体弱多病的妇女常有这种情况，但必定是由于纵欲不节制，导致损伤母气而堕胎的情况更多。所以那些倚仗强壮过度的人大多没有子女，因为强弱相互残害。放纵不节制的人大多不育，因为盗损了胎元之气。这难道全是由妇人的罪过吗？想要寻求我方子的人，应当先读这篇文字，那么传方的意图，就已经明白过半了。
第十条讲童稚时期，这是女子生育的关键时期。就像花苞刚结、花萼初开，生机尚未舒展，刚刚成年及笄，天癸（月经）尚未充盈。曾见过有未成熟的种子，可以作为良种吗？未长足的蚕，可以吐丝结茧吗？强行耗费心力，等到年老时还能等待结果吗？这也是不懂把握时机啊。
第十一条讲二火，这是男女阳气的关键。君火在心，心是君主之官。相火在肾，肾是先天之本。然而二火相互依存，无声不应。所以心宜保持宁静，不宁静则火因欲望而动，由心挑动肾，先动心后动肾，是以阳灼烧阴，出于勉强，勉强则气向下沉降，丹田失守，已经失去了元阳的本色。肾宜充足，肾足则阳气从地起，由肾波及心，先动肾后动心，是以水济助火，本乎自然。自然则气向上升发，百脉齐至，这才是化育生命的真正关键。然而身体单薄的人，往往从勉强开始，所以多患虚劳病。岂止是没有子嗣，朴实浓厚之子，常由自然之道而来，所以万物通达，何必担心没有后人？懂得把握时机的君子，务必探究阳道的真正机理吧？
Small miscarriages (spontaneous abortion occurring before the 28th week of gestation) vary in timing. Those occurring in the second or third month are considered "early" (near), while those in the fifth or sixth months are considered "late" (far). A miscarriage shortly after conception is mild in severity, whereas one occurring after a long gestation is severe; this is common knowledge. However, there is an even earlier type: immediate loss following conception. In families currently struggling with infertility, five or six out of ten cases fall into this category. The root cause is invariably excessive indulgence in sexual activity. This fact has traditionally been unknown and disbelieved by people. I now use my pen as a lamp to guide the confused, hoping to benefit future generations, which is my sincere wish. Let me explain in detail.
When the fetus first begins to form, at one month it is like a drop of dew, at two months like a blooming peach blossom. By the third and fourth months, blood vessels and physical forms are established; by the fifth and sixth months, bones, sinews, hair, and nails grow. At the initial stage of conception, it is merely a single drop of precious essence (Jing). At this point, the fetal foundation is like a bellows without support, and the roots have no ground to anchor. If secured, it remains firm; if not, it flows away. Therefore, after conception, it is crucial to restrain sexual desire to prevent the leakage of essence. Yet, young men often indulge their passions without fear. Although many pregnancies are preserved despite weak fetal vitality, those with exceptional physical strength may rely on their robustness to avoid ejaculation, or resume intercourse immediately after ejaculation. During such times, while the woman seeks stillness, the man refuses to cease. Like a madman banging on doors, driven by the woman's yielding nature and passion, she opens up and follows the flow. At this moment, falling flowers fly together with pink butterflies, and fire dates escape along with cross-pear fruits; they mix and flow together, unaware that conception occurred yesterday and miscarriage today, or on the first day of the lunar month and loss by the full moon. Immediate loss following conception leaves no obvious traces. In "bright miscarriage," the fetus has formed, and the mother feels it; in "hidden miscarriage" (occult abortion), the fetus resembles water and slips away unnoticed. Thus, many families struggling with infertility do not have full-term births because of frequent small miscarriages. Men who marry prostitutes often have few children because their partners' uteruses are slippery and accustomed to miscarriage. I have seen men seeking prescriptions for infertility who claim they can perform sexually and last long, yet complain, "Everyone else has children, but I alone do not." They fail to realize that while others experience bright miscarriages, they suffer from hidden ones. Furthermore, women who miscarry repeatedly at three or five months, though common among frail women, most often do so due to unrestrained sexual activity damaging maternal Qi. Thus, those who overexert themselves physically often remain childless due to mutual destruction of strength. Those who indulge without restraint are often infertile because they steal and damage the Qi of the fetal origin. Is this solely the fault of women? Those seeking my prescriptions should read this section first; then half of the intent behind prescribing will be understood.
The tenth point discusses childhood, which is the critical timing for women. Just as buds form and calyxes open, vital energy has not yet fully expanded. Upon reaching puberty, Tian Gui (menstrual fluid/sexual maturity) is not yet abundant. Have you ever seen unripe grains serve as seeds? Can immature silkworms spin cocoons? Forcing effort and waiting until old age is futile; this shows a lack of understanding of timing.
The eleventh point discusses the Two Fires, which are the key to Yang energy in men and women. The Ministerial Fire (Jun Huo) resides in the Heart, which is the sovereign organ. The Ministerial Fire (Xiang Huo) resides in the Kidney, the root of the body. These two fires interact; silence meets no response. Therefore, the Heart should remain tranquil. If not tranquil, Fire moves due to desire, stimulating the Kidney from the Heart. Acting on the Heart first and then the Kidney burns Yin with Yang, arising from forced effort. Forced effort causes Qi to descend, leading to the loss of control over the Dantian and the loss of the true nature of Yuan Yang (Original Yang). The Kidney should be sufficient. When Kidney essence is full, Yang rises from the earth (lower body), affecting the Heart. Acting on the Kidney first and then the Heart uses Water to balance Fire, following nature. Natural movement causes Qi to ascend, reaching all meridians; this is the true mechanism of generation. However, frail men often resort to forced effort, thus frequently suffering from Xu Lao (Deficiency Consumption). How can they expect offspring? Men of simple and rich constitution often follow natural laws, ensuring prosperity for all things; why worry about descendants? Gentlemen who understand timing must investigate the true mechanism of Yang Dao (sexual function/vitality).