The poet discovers that what men value as substances have a higher value as symbols; that Nature is the immense shadow of man. A man's action is only a picture-book of his creed. He does after what he believes. Your condition, your employment, is the fable of _you_. The world is thoroughly anthropomorphized, as if it had passed through the body and mind of man, and taken his mould and form. Indeed, good poetry is always personification, and heightens every species of force in nature by giving it a human volition. We are advertised that there is nothing to which he is not related; that everything is convertible into every other. The staff in this hand is the _radius vector_ of the sun. The chemistry of this is the chemistry of that. Whatever one act we do, whatever one thing we learn, we are doing and learning all things,--marching in the direction of universal power. Every healthy mind is a true Alexander or Sesostris, building a universal monarchy. The senses imprison us, and we help them with metres as limitary,--with a pair of scales and a foot-rule, and a clock. How long it took to find out what a day was, or what this sun, that makes days! It cost thousands of years only to make the motion of the earth suspected. Slowly, by comparing thousands of observations, there dawned on some mind a theory of the sun,--and we found the astronomical fact. But the astronomy is in the mind: the senses affirm that the earth stands still and the sun moves. The senses collect the surface facts of matter. The intellect acts on these brute reports, and obtains from them results which are the essence or intellectual form of the experiences. It compares, distributes, generalizes, and uplifts them into its own sphere. It knows that these transfigured results are not the brute experiences, just as souls in heaven are not the red bodies they once animated. Many transfigurations have befallen them. The atoms of the body were once nebulæ, then rock, then loam, then corn, then chyme, then chyle, then blood; and now the beholding and co-energizing mind sees the same refining and ascent to the third, the seventh, or the tenth power of the daily accidents which the senses report, and which make the raw material of knowledge. It was sensation; when memory came, it was experience; when mind acted, it was knowledge; when mind acted on it as knowledge, it was thought.