Nature is in constant transition, changing from moment to moment. People cannot grasp nature’s true appearance. The face of nature is unknowable. Trying to capture the unknowable in theories and formalized doctrines is like trying to catch the wind in a butterfly net. If you hit the mark on the wrong target, you have missed. Humanity is like a blind man who does not know where he is heading. He gropes around with the cane of scientific knowledge, depending on yin and yang to set his course.
