This vigor of flight in the poet, bearing on his wing the reader, whom he ushers to new, sudden vistas, is a test of poetic genius. Some poets never carry you to heights, but rather make you feel while reading them as if you were moving through shut-in valleys: their verse wants sky. They are not poetically imaginative, are not strung for those leaps which the great poet at times finds it impossible not to make. They have more poetic fancy than poetic imagination. Poetic fancy is a thin flame kindled deliberately with gathered materials; poetic imagination is an intense flash born unexpectedly of internal collisions. Fancy is superficial and comparatively short-sighted; imagination is penetrative and far-sighted, bringing together things widely sundered, apparently diverse and opposite. Fancy divides, individualizes; imagination compounds, builds, globes. Fancy is not so broad or so keen or so warm or so bounding as imagination; is comparatively tame and cold and quiet. Imagination is synthetical. Large exhibitions of poetic imagination are rare even in the greatest poets. At its best it strikes deep into the nature of things, has a celestial quality which invests it with awe. Spenser shows great resources of fancy, but little imagination. The arc of imagination is in him too near its center. Hence there is no reach in his thoughts. He has no exhaustless depths within. He is not, as Coleridge says Shakespeare is, an example of “endless self-reproduction.” Cowley, says the same great critic, “is a fanciful writer, Milton an imaginative poet.”

As I have already said, the power of imagining, of forming in the mind images, conceptions, is a purely intellectual power, and imagination becomes poetical only when this intellectual power is an agent obeying that emotional power which ardently seeks, intensely longs for, the better, the more perfect, the purer, in one word, the beautiful in each province of multiform life. The willing agent, intellect, is sent out on excursions of discovery, and unexpectedly falls in with and captures all kinds of sparkling booty.

Writers weak in poetic imagination are not visited by those beaming thoughts that come unsummoned out of the invisible, like new stars which, out of the unfathomable deeps of the sky, dart suddenly upon the vision of the heaven-watcher. Such writers deal with the known, with the best commonplace, not the common merely; and under the glance of genius the common grows strange and profound.

Some poets, not weak in poetic imagination, yet use it chiefly for secondary purposes, that is, for beautifying the dress, the externals of poetry. Minds with some breadth but with little depth are not thoroughly original. Their sense of the beautiful busies itself necessarily with that for which they have the readiest gifts; and their readiest gifts being words more than ideas, versification more than thought, form more than substance, they turn out verse, chiefly narrative, which captivates through its easy flow, its smooth sensuousness of diction, its gloss. Take a poet so celebrated, in some respects so admirable, as Tennyson. Tennyson’s verse is apt to be too richly dressed, too perfumed. The clothing is costlier than the thoughts can pay for. Hence at every re-reading of him he parts with some of his strength, so that after three or four repetitions he has little left for you. From a similar cause this is the case too with Byron, through whose pen to common sentiment and opinion a glow is imparted by the animal heat of the man, heightened by poetic tints from a keen sense of the beautiful. But this is not the case with Keats or Shelley or Coleridge or Wordsworth, and of course therefore not with Milton or Shakespeare. All these keep fresh, at every contact giving you strength and losing none. As freely and freshly as the sun’s beams through a transparent, upspringing Gothic spire, intellect and feeling play, ever undimmed, through Shelley’s “Sky-Lark.” Not so through Tennyson’s “Dream of Fair Women.” After a time these mellifluous stanzas droop, and cling to the paper: they have not enough flame-like motion. The nicest word-choosing will not supply the place of choice in thought, a choice prompted by fresh feeling; nor, where there is no new impulse from the heart, will the most gorgeous diction give to a line the poetic carnation. There can be no freshness of expression without freshness of thought; the sparkle on the skin comes from new blood in the heart.

Tennyson’s poetry has often too much leaf and spray for the branches, and too much branch for the trunk, and too much trunk for the roots. There is not living stock enough of thought deeply set in emotion to keep the leaves ever fresh and fragrant. Wordsworth’s poetry has for the most part roots deeply hidden.

Poetry is at times fitted to a subject too much like clothes to a body. This is the method with even some writers of good gifts and deserved name. Compared with Goethe, who, sensuous as he is, but healthily sensuous, writes always from within outward, Schiller is chargeable with this kind of externality. To try to make the fancy do the work of feeling is a vain effort. And so much verse is of the memory and fancy more than of the heart and imagination. Inward impulse not being dominant, the words, however shiny, are touched with coldness. Under the inward dominance (supposing always that the intellectual tool be of due temper and sharpness) the poet mounts springily on a ladder self-wrought out of the brain as he ascends; and thus there is a prompt continuity and progressiveness, a forward and upward movement towards the climax which ever awaits you in a subject that has a poem in it. In a genuine poem, a work of inspiration and not mainly of art, there is brisk evolution, phase of feeling climbing over phase, thought kindled by thought seizing unexpected links of association. This gives sure note of the presence of the matrix out of which poetry molds itself, that is, sensibility warm and deep, penetrating sympathy. Where evolution and upward movement are not, it is a sign that the spring lacks depth and is too much fed by surface streams from without.

Through a poem should run a thread of emotional thought, strong enough to bind the parts together so vividly as to hold attention close to the substance. Many a so-called poem is but a string of elaborate stanzas, mostly of four lines each, too slightly connected to cooperate as members of an organic whole. There is not heat enough in the originating impulse to fuse the parts into unity. There is too much manufacture and not enough growth. Coleridge says, “The difference between manufactured poems and works of genius is not less than between an egg and an egg-shell; yet at a distance they both look alike.”

Men without depth of sensibility or breadth of nature, but with enough sense of beauty to modulate their thoughts, using with skill the floating capital of sentiment and the current diction and molds of verse, for a generation are esteemed poets of more genius than they have, their pages being elaborate verse flavored with poetry, rather than poems. In much verse are found old thoughts re-dressed in the scoured garments of an ambitious fancy. The remark being made to Goethe in his latter days, that scarce one of the younger German poets had given an example of good prose, he rejoined, “That is very natural; he who would write prose must have something to say; but he who has nothing to say can make verses and rhymes; for one word gives the other, till at last you have before you what in fact is nothing, yet looks as though it were something.” There is much good-looking verse which does not fulfill any one of Milton’s primary conditions for poetry, being artificial instead of “simple,” and having neither soul enough to be “passionate,” nor body enough to be “sensuous.” By passionate Milton means imbued with feeling.

The poetical mood is always a visionary mood; so much so, that even when the poet is depicting an actual person or scene, he must see it with the imaginative eye, the inward eye, as well as with the outward. Unless he does, there is no poetry in the result. A poem is twofold, presenting an actuality, and at the same time a tender lucent image thereof, like the reflection of a castle, standing on the edge of a lake, in the calm deep mirror before it: at one view we see the castle and its glistening counterpart. In the best poetry there is vivid picture-making: reality is made more visible by being presented as a beautiful show. It is the power to present the beautiful show which constitutes the poet. To conceive a scene or person with such liveliness and compactness as to be able to transfer the conception to paper with a distinctness and palpitation that shall make the reader behold in it a fresh and buoyant type of the actual—this implies a subtle, creative life in the mind, this is the test of poetic faculty. To stand this test there must be an inward sea of thought and sensibility, dipping into which the poet is enabled to hold up his conception or invention all adrip with sparkling freshness. The poetic mind, with a firm, and at the same time free, easy hold, holds a subject at arm’s length, where it can be turned round in the light; the prosaic mind grasps and hugs what it handles so close that there is no room for play of light or motion.

Contemplating synthetically the highest and choicest and purest, and at the same time actively endeavoring to embody it, the genuine poet has in his best work joy as exalted as the mind can here attain to; and in the reader who can attune himself to the high pitch, he enkindles the same kind of joyful exaltation. There is current a detestable phrase or definition, which even Coleridge allows himself to countenance, namely, that poetry is something which gives pleasure. Pleasure! Do we speak of the pleasure of beholding the sun rise out of the Atlantic or from the top of Mount Washington, or the pleasure of standing beside Niagara, or of reading about the self-sacrifice of Regulus or Winkelried? Pleasure is a word limited to the animal or to the lighter feelings. ”Let me have the pleasure of taking wine with you.” A good dinner gives great pleasure to a circle of gourmets. Even enjoyment, a higher word than pleasure, should, when applied to poetry, be conjoined with some elevating qualification; for all the feelings impart enjoyment through their simple healthy function, and there are people who enjoy a cock-pit, or a bull-fight, or an execution. But poetry causes that refined, super-sensuous delight which follows the apprehension of any thought, sentiment, act, or scene, which rises towards the best and purest possible in the range of that thought, sentiment, act, or scene. In the poetical there always is exaltation, a reaching towards perfection, a subtle, blooming spirituality. The end of poetry is not pleasure,—this were to speak too grossly,—but refined enjoyment through emotion.