"Tango is like writing a letter, it has a beginning, periods, commas, stops and an end. If you are doing figures and gyros (turns) all the time, people don’t see anything and that is why there is the walk- the invention of the people. In this dance of the people, which is what tango is, all the famous couples have used the walk, and they use it constantly.
The tango is on the ground, It is caressing the floor. It is the ball of the foot supporting the weight of the body, right on the axis and each person on his/her own axis. If you make pupils walk at the beginning, they get bored and want to learn steps and more steps - to show off at the dance hall. So you need to have the luck of meeting a teacher who tells you: No. Look. You must walk. First walk."