Lao-tzu, as he begins the Tao Te Ching, says that the Way (Tao) that can be accounted for, or explained, is not the real Way. Remember how Jesus used parables, and only parables, to express the deepest concepts behind the Christian life? As I practice my craft of photography, I am surrounded by numbers. F-stop, shutter speed, and length of lens are recorded in the file of each image. I often review these statistics to see if I am handling my camera the way that I should. This work of the thing, is not the same process as the pursuing of light. If any of the numbers are off, I may fail to capture this or that image.