We begin with the number one in counting all things. It is impossible that this one can ever be reduced to zero. Because just as something cannot be made from nothing, one cannot be made from zero.
Ki is like the number one. Ki is formed from infinitely small particles, smaller than an atom. The universal ki condensed becomes an individual, which in turn condensed becomes the one point in the lower abdomen, which in turn infinitely condensed never becomes zero, but becomes One with the Universe. Thus we understand the essence of ki.
