The universe and nature have been perfectly and uniquely arranged for the survival of all things. The handover of heaven and earth (referring to the handover of yin and yang), the movement of the sun and the moon, and maintaining balance are ingenious combinations of the biological world. After that, he began to write about the wedding night, his sex life throughout the year, and the many positions of sex. Every detail was not hidden. From today's perspective, it can be called extremely pornographic literature. The most shocking thing is undoubtedly the description of "infidelity". Wow! Unmarried at home, a stranger in a different land, this is a disobedient thing, and there are many misfortunes. Staying in a hotel but feeling lonely and unable to sleep, staying in a boudoir but feeling separated. With her beautiful appearance, I always want to have sex; when I see the beautiful face of a horse, I often think of my spouse. I am envious of my feelings in court, and I am willing to throw the fruit into Chunmo. Thinking about the desire to stop masculinity often leads to madness; feeling that the spirit is scattered, one looks thin and barren. That is, sleeping and eating are useless, walking and walking are careless, seeing only in dreams, and attacking each other in the dark. The information is thicker than Baidu, and Gu Xiaoxi is more interested in it. Thinking about beauty and slender waist, sometimes they coincide with each other and the soul disappears. ...Sometimes there are circumstances where beds are not made; or there are grassy edges beside the wall, and flowers are scattered deep in the depths. I'm just afraid that people will know that I don't care about etiquette! Some people spread their skirts and borrow grass, or they lie down on the ground and lean on pillars. The heart is frightened and the spirit is frightened. In a hurry, Sheng'an went to Baidu in bed. This passage can serve as a powerful refutation of the "reproductive teleology" of ancient Chinese sex. If it is just to have children, why bother about the beautiful woman next door to the hotel? Why do you toss and turn about her? Why do you need to be crazy about her? Why ask someone to be a matchmaker in your dream? Or even have sex with a beautiful woman in your dream, which makes you lose your soul and break your heart? It is true that "a wife is worse than a concubine, and a concubine is worse than a thief." Although having an affair is happy, there are still worries and fears in my heart. Some men and women have sex casually without beds. For fear of being discovered by others, they act hastily in back corners, lawns, deep vegetation, etc. They may spread their skirts or put some grass under their bodies; they may bend down to penetrate from behind, or they may stand and lean on each other. Although they were a little worried and uncomfortable when they made love on the pillars, this kind of tryst and sex was better than a hundred times on the bed. This wonderful article also mentions an ancient sexual health method - replenishing the essence and replenishing the brain. That is to say, when orgasm is about to come, sometimes one deliberately refrains from ejaculating so that the semen can turn around without leaking, then inhale deeply and swallow the fluid in the mouth. It is said that this method can prolong life and maintain health. In recent times, some doctors have pointed out that the so-called replenishing the essence and replenishing the brain is just a conjecture of the ancients and has no scientific basis. Moreover, this approach can easily lead to prostatitis and premature loss of sexual function. It is a pity that this theory cannot be told to the ancients.