The mechanics of the human body are both the most erotic and most impressive. Our muscles, bones, blood vessels, nerve endings, skin, right down to cells are so perfectly natural. A well oiled machine when healthy, and the image of perfection that absolutely nothing we create could ever hope to imitate.
Why would you waste this gift on back breaking labor not even befitting a slave? Why destroy this perfect machine with shitty food, mind and body destroying drugs or alcohol? Use this machine to express beauty. Synthesize the connection, and you will see just how perfect your vessel is.