Puzzlement

If one's kidneys were deficient in Yin, they would often think about sex and wouldn't be able to suppress that evil thought. However, after engaging in it, they would be very weak and their bodies would sweat profusely.

Of course, this also depended on the person. In any case, the kidney was an especially important organ of the body. If the kidney was often weakened, it would make the body very weak at the same time.

Moreover, what was wasted was very helpful to the body. It could be compared to nutrients. It could maintain the body and provide motivation. Moreover, it was very helpful to the mind.

In the Daoist language, it was called essence transforming into qi. When one had enough essence, it would transform into qi. With qi, their body would have strength. When qi transformed into a soul, their body would have strength, and their spirit would have a good replenishment.