Look for it, and it can't be seen. Listen for it, and it can't be heard. Grasp for it, and it can't be caught. These three cannot be further described, so we treat them as The One. Its highest is not bright. Its depths are not dark. Unending, unnameable, it returns to nothingness. Formless forms, and imageless images, subtle, beyond all understanding. Approach it and you will not see a beginning; follow it and there will be no end. When we grasp the Tao of the ancient ones, we can use it to direct our life today. To know the ancient origin of Tao: this is the beginning of wisdom.