Loving unions originate in empathy. And this feeling requires intelligence, not so much the intellect of reason, but the intelligence of the body and the heart. It is awareness without words. Reason can only know of love, empathy and beauty, if it is guided by something much older and hidden much deeper in man.
During our history, animals and humans drifted into separate worlds. But when it comes to physical processes like eating, drinking, sex, giving birth and suckling, the animal in us, which was hidden under our reason, comes freely and effortlessly to the surface. Then, there are no dividing lines anymore and boundaries vanish into thin air. Everything is connected to everything else.