Page:The Harvard Classics Vol. 51; Lectures.djvu/73

 Rh the same vowel sound within syllables, but with different consonants, as shape, mate. Alliteration is the agreement in sound of initial syllables, as in "The lisp of leaves and the ripple of rain." Alliteration, combined with stress, is the essential verse-principle of Anglo-Saxon poetry; it is used to-day at the risk of obscuring the sense by overloading the ornament. The melodic quality of tone-color is more subtle; it is the suggestion of the meaning of the words by the tonal quality and value of their syllables, as in "Sweet dimness of her loosened hair's downfall," where the slow change in vowel quality, ē, ĭ, ō, ā, seems to invest the image with a kind of "penumbra" of sound. These are the notes of the poet's gamut; the master craftsman employs them with a just reticence to enhance the sensuous appeal of his art.

But poetry is not only emotional and sensuous in its appeal. By virtue of its medium of words, it is adapted—to an extent that the arts of painting, sculpture, and music are not—to the expression of intellectual ideas. It gains in potency, however, in the measure that it phrases these ideas not in abstract terms but concretely. Words are not color or form, but they can suggest it by means of images. Emotion always has an object, which calls it out and represents it. The image in the word becomes the expression of the poet's own feeling; and it is also the symbol and occasion to others of a like emotion. How much Wordsworth's apostrophe to Duty gains in persuasion by the beauty of suggested images! So the idea embodies itself and becomes warm and vivid, rousing the hearer's imagination to vision and kindling him to emotion. This evocative power of words is the secret of the poet, and is hardly to be analyzed. It attaches to the tonal beauty of their syllables, in themselves and in rhythmic combination; it derives from their vividness of image, and from the associations, both intellectual and emotional, which cling around them like an aroma and an exhalation.