Science included medicine, condemned a lot of aspects of sex to be unhealthy, tried figuring out the truth behind it by talking about it as much as they could, with every detail possible, and included itself into the confession room.
They discussed about the perversions of it, use perversities of various aspects of sex to conceal it in a way, to put it under a category and behind a screen. Treated as an evil to society, they found medical reasons to abstain from sex apart from the norm and began claiming it on moral grounds as well. It claimed sex to be able to eradicate the species, that it was capable of being a danger to the moral and physical cleanliness of a human. They grounded themselves by using science as a tool to procure the 'truth' behind sex.
Treated shamefully, and drawn out of the cupboard to seize the almost disgusting truth behind it. Not only about reproduction, but also about seeking the truth within the act of sex itself no longer treated as a matter of morality but also of knowledge.
They demanded one to know the greatest details of sex, but without referring to it directly. They wanted one to be cut and dry about referring to it. Devoid of all emotions, desires and pleasure. This was the scientia sexualis treatment of sex, which was prevalent in the west.
So while in the west they were trying to uncover the truth by distancing themselves from the pleasures of sex, in the east, the truth was derived from understanding the pleasures itself, they used ars erotica, the erotic art was what was how sex was treated.
They used sex and the workings of it to understand the soul and the body. The 'truth' behind sex was kept a secret out of respect and not out of disgust or to shun the act itself. It was something that needed mastery and could be done so, if the secret was seeked from the master.
So the treatment of sex in the east and...