Sexual energy, the so-called libido, is closely related to aggressive energy. Moreover, we can say that in some aspects of sexual preferences it is actively spreading and objectifying. Since sexual attraction is located on the border between the physical, bodily and mental, and is created through the so-called affects, which are the foundation for the creation of libidinal energy and aggression, we can say that it is “a constantly changing manifestation of sexual attraction in the individual.” For example, S. Freud spoke in his writings about the concept of “libido,” which denotes energy that may differ from somatic arousal: “a lack of sexual libido energy leads to an increase in tension at the bodily level and directly, without any mental processing, gives rise to symptoms. In the absence of certain mental conditions, sexual arousal gets out of control, which leads to tension and the inability to use the psyche fruitfully. At this moment, a gap arises between the mental and the physical, creating a state of anxiety. And as we know, anxiety is not objectified fear. As soon as you realize the reason, anxiety will turn into fear." So, for example, Otto Kernberg, referring to S. Freud, says that aggression is part of sexual experience. For example, the experience of insertion, penetration and the experience of being penetrated, entered, includes aggression, which is love, while using the erogenous opportunity to experience pain as a necessary part of the pleasure of merging with a partner in sexual arousal and orgasm. That is, there is both sadism towards oneself, but at the same time masochism. (When there is no sexual release, but it is present in an “active state”, ready to be released, then sublimation comes into play as a way to satisfy aggressive sexual energy. For example , going to the gym. At the same time, there is sadism towards oneself, which is masochism). This ability to change pain into erotic excitement is normal. It creates a certain “failure” in changes when gross (sadism over a partner) aggression prevails in the relationship between parents and children, which may be a decisive factor in the formation of erotic arousal that occurs when causing suffering to others. During development, especially the formation of sexuality, when inflicting bodily harm, which involves aggression and pain, perhaps one may be displaced by the other. Then, the child can use pain as a way to reach the peak of pleasure, especially if the sexual energy has not been reset and how to reset it is not clear. If you liked it, I will be glad to see your contribution :)