(_γ_) Finally, if we look at the aim and interest of that which is metaphorical, the first thing which strikes us is that a word in the strict sense is an independently intelligible expression, the metaphor otherwise. The question consequently presents itself, what is the reason of this twofold means of expression, or, to put it another way, why is it that we have the metaphorical which essentially implies this division? The common explanation is that metaphors are used to give vivacity to poetical composition, and this animating effect is the ground in virtue of which Heyne, in particular, insists on their value. The vivacity consists in the support they offer to imaginative vision in the direction of clear definition, divesting the word, which is always something generalized, of its purely indefinite character, and bringing it home to sense by means of an image. No doubt a greater degree of vivacity is to be found in metaphors than in the strict expressions of ordinary speech; genuine vitality, however, is not to be sought for in metaphors, whether in isolation or combination, whose figurative plasticity, it is true, may frequently include a relation, which by good chance attaches at the same time to the expression an increased perspicuity and a higher definition, but quite as often, if every detail of the process of thought is thus figuratively emphasized in isolation, makes the whole unwieldy, overloading it thus with its emphasis on singular aspects.
The genius of metaphorical diction is consequently, as we shall have to elucidate more closely in our consideration of simile, to be regarded as responding to a need and potency of mind and the emotional life, which will not rest satisfied with that which is entirely simple, ordinary, and homely, but make an effort beyond this and over into something more recondite under the attraction which distinction offers and the impulse to co-ordinate contrasted effects. This binding together has itself again various causes, which may be notified as follows.
(_αα_) _First_, we have it for the sake of _reinforcing_ an effect. The emotional life, under the pressure and movement of its passions, gives visible utterance to these forces by means of the piling up of sensuous image. More than this, it strives to express its own whirl and tumble, or persistence in the ideas which crowd upon it by means of a similar letting itself go into phenomena cognate with such a condition, and its own free movement among images of the greatest variety. In Calderon's supplication to the Cross Julia utters the following words when she looks upon the dead body of her only just deceased brother, and her lover, Eusebio, the man who has killed Lisardo, stands before her: