Have you ever wondered why a marine shell would become a symbol for a Tango Project?
Shell of Nautilus Pompilius almost perfectly fits into the "ideal" Golden Spiral.
It is a symbol of harmony, of endless continuation and beautiful aesthetic.
Tango developments for us never ends, there is no "I've reached the goal and became a great dancer, now I can stop", because you can always get BETTER, more interesting, more versatile, have better technique. That is the absolute beauty of this dance.