CHAPTER XIII.
IMAGINATION.

All operations of mind which are not produced by material things acting upon the senses consist of a continual succession of conceptions. Some of these conceptions are exact pictures of past perceptions, and are attended by the consciousness that such things have existed before, and such are called ideas of memory. Others are conceptions which, by the process of association, are continually recurring, and arranging themselves in new combinations, according to certain laws or principles of association. Imagination has been defined as "that power which the mind possesses of arranging conceptions in new combinations," and it can readily be seen that this includes all the ordinary successions of thought except those of perception and memory. The term imagination has been used in rather a vague manner by writers on the subject. Sometimes it is used to signify all that succession of conceptions which recur according to the laws of association, and sometimes it is used in a more restricted sense. The more limited meaning is the one to which the term is most commonly applied, and it seems to be the one which precision and accuracy in the use of terms demand, and therefore it will now be pointed out.

The mind is susceptible of certain emotions, which are called emotions of taste. These, more specifically, are called emotions of beauty, sublimity, and novelty. Such emotions are awakened by certain objects in nature, by certain works of art, and by the use of language which recalls conceptions of these objects. Those objects which awaken such emotions are called objects of taste, and those arts which enable us to produce combinations that will awaken such emotions are called the fine arts.

Among the fine arts are ordinarily classed painting, music, sculpture, architecture, ornamental gardening, and poetry. The art of the painter consists in combining, according to certain rules of proportion and fitness of outline and color, certain objects, which, either from their peculiar character, or from the fitness of their combination in effecting a given design, awaken emotions of beauty or sublimity. The highest perfection of this art consists not so much in close imitation as in the nature of the combinations, and their unity and fitness in producing the effect designed by the artist.

The art of the sculptor is similar in its nature, and differs chiefly in the materials employed, and in being limited to a much more restricted number of objects for combination.

The art of the architect consists in planning and constructing edifices, intended either for use or ornament, and in so arranging the different parts as to awaken emotions of beauty or sublimity from the display of utility, fitness, grandeur of extent, or order of proportion.

The art of the musician consists in combining sounds so as to produce such melodies or harmonies as will awaken varied emotions in the mind. The power of this art over the human mind is much superior to that of the others enumerated, because it can call forth both a greater variety and more powerful emotions.

The art of the poet consists in such a use of language as will recall objects of beauty or sublimity in combinations that are pleasing to the mind, or as will, by the description and expression of varied emotion in other minds, awaken similar feelings in the breast of the reader.

The art of ornamental gardening consists in such an arrangement of the varied objects which compose a landscape as will awaken emotions of beauty from a display of unity of design, order, fitness, and utility.