The starting posture in tai chi (taiji) is that of complete stillness, which represents the "tao". The "tao" is the "uncarved block" and the movements in the tai chi set are the interplay between Yin and Yang. At the end, we return to stillness. This pattern is like the life of the Universe, which also started from the Void. It is an open question in cosmology is the Universe will contract back and end in a "Big Crunch".