When we were considering the beginnings of language, we learned that all root-words were expressions of sensations received from outward things, every name or word being a description of some bodily feeling, a gathering-up of impressions on the senses made by the universe outside us. With this stock of words--pictorial words, we may call them--it is easy to see that when people in early times wanted to express a mental feeling, they were driven to use the word which expressed the sensation in their bodies most nearly corresponding to it. We do something of the same kind now when we talk of _warm_ love, _chill_ fear, _hungry_ avarice, and _dark_ revenge--mixing up words for sensations of the body to heighten the expression of emotions of the mind. In using these expressions we are conscious of speaking allegorically, and we have, over and above our allegorical phrases, words set aside especially for describing mental actions, so that we can talk of the sensations of our bodies and of our minds without any danger of confounding them together. But in early times, before words had acquired these varied and enlarged meanings, when men had only one word by which to express the glow of the body when the sun shone and the glow of the mind when a friend was near, the difficulty of speaking, or even thinking, of mental and bodily emotions apart from each other must have been very great. Only gradually could the two things have become disentangled from one another, and during all the time while this change was going on an allegorical way of speaking of mental emotions and of the source of mental emotions must have prevailed. It is not difficult to see that while love and warmth, fear and cold, had only one word to express them, the sun, the source of warmth, and God, the source of love, were spoken of in much the same terms, and worshipped in songs that expressed the same adoration and gratitude. It follows, therefore, that while we acknowledge the large proportion in which the nature element comes into all mythologies, we need not look upon the worshippers of nature as worshippers of visible things only. They felt, without being able to express, the Divine cause which lay behind the objects whose grandeur and beauty appealed to their wonder, and they loved and worshipped the Unseen while naming the seen only. As time passed on and language developed, losing much of its original significance, there was, especially among the Greeks and Romans, a gradual divergence between the popular beliefs about the gods and the spirit of true worship which originally lay behind them. People no longer felt the influence of nature in the double method in which it had come to them in the childhood of the race, and they began to distinguish clearly between their bodies and their minds, between the things that lay without and the emotions stirred within. Then the old nature-beliefs became degraded to foolish and gross superstitions, and