Tango is the Iyengar Yoga of dance. It forces you to perfect your posture and alignment in order to achieve proper dance technique. I cannot think of any activity which requires such a minute attention to detail of the human form. The body is reduced to a machine; a walking machine that you must teach to step with four legs instead of two. If the machine does not work smoothly, you need to adjust it and maybe even overhaul it, with no attachment or shame as to past ideas of perfection that suddenly fall to the wayside, with no known feeling of perfection to relate to – only the abstract concept of perfect posture “as seen on TV” – but here, the TV is the tango dance floor.