Just because emotion is essential to that act of expression which produces a work of art, it is easy for inaccurate analysis to misconceive its mode of operation and conclude that the work of art has emotion for its significant content. One may cry out with joy or even weep upon seeing a friend from whom one has been long separated. The outcome is not an expressive object -- save to the onlooker. But if the emotion leads one to gather material that is affiliated to the mood which is aroused, a poem may result. In the direct outburst, an objective situation is the stimulus, the cause, of the emotion. In the poem, objective material becomes the content and matter of the emotion, not just its evocative occasion.