I’m not entirely sure why the description works, but here are some thoughts: Sex brings that special addiction to your one love, your true life partner. If you aren't careful it becomes an addiction to the physical act and the fantasy rather than the person. And so, be good to yourself, love yourself by being sure that you've met your life partner before you have sex... then the relationship becomes all the deeper for you both... that's when humans mate for life instead of entering the carousel of pain that has become so normal in this toxic society.