Invention and imagination—What the moon meant to Keats—Elizabethan Precedents—Fletcher and Drayton—Drayton’s two versions—Debt of Keats to Drayton—Strain of allegory—The Soul’s quest for beauty—Phantasmagoric adventures—The four elements theory—Its error—Book I. The exordium—The forest scene—Confession to Peona—Her expostulation—Endymion’s defence—The ascending scale—The highest hope—Book II. The praise of love—Underworld marvels—The awakening of Adonis—Embraces in the Jasmine Bower—The quest renewed—New sympathies awakened—Book III. Exordium—Encounter with Glaucus—Glaucus relates his doom—The predestined deliverer—The deliverance—Meaning of the Parable—Its machinery explained—The happy sequel—Book IV. Address to the Muse—The Indian damsel—An ethereal flight—Olympian visions—Descent and renunciation—Distressful farewells—The mystery solved—A chastened victory—Above analysis justified.

Keats had long been in love with the Endymion story. The very music of the name, he avers, had gone into his being. We have seen how in the poem beginning ‘I stood tiptoe,’ finished at the end of 1816, he tried a kind of prelude or induction to the theme, and how, laying this aside, he determined to start fresh on a ‘poetical romance’ of Endymion on a great scale. When in April 1817, six weeks after the publication of the volume of Poems, he went off to the Isle of Wight to get firmly to work on his new task, it is clear that he had its main outlines and dimensions settled in his mind, but nothing more. He wrote to George soon after his departure:—

As to what you say about my being a Poet, I can return no Answer but by saying that the high Idea I have of poetical fame makes me think I see it towering too high above me. At any rate, I have no right to talk until Endymion is finished, it will be a test, a trial of my Powers of Imagination, and chiefly of my invention which is a rare thing indeed—by which I must make 4000 lines of one bare circumstance, and fill them with poetry—and when I consider that this is a great task, and that when done it will take me but a dozen paces towards the temple of fame—it makes me say—God forbid that I should be without such a task! I have Heard Hunt say, and I may be asked—why endeavour after a long Poem? To which I should answer, Do not the Lovers of Poetry like to have a little Region to wander in, where they may pick and choose, and in which the images are so numerous that many are forgotten and found new in a second Reading.... Besides, a long Poem is a test of invention, which I take to be the Polar Star of Poetry, as Fancy is the Sails—and Imagination the rudder.—Did our great Poets ever write Short Pieces? I mean in the shape of Tales. This same invention seems indeed of late years to have been forgotten as a Poetical excellence—But enough of this, I put on no Laurels till I shall have finished Endymion, and I hope Apollo is not angered at my having made a Mockery at Hunt’s—

In his reiterated insistence on Invention and Imagination as the prime endowments of a poet, Keats closely echoes Joseph Warton’s protest uttered seventy years before: is this because he had read and remembered it, or only because the same words came naturally to him in pleading the same cause? When his task was finished he confessed, in the draft of a preface afterwards cancelled,—‘Before I began I had no inward feel of being able to finish; and as I proceeded my steps were all uncertain.’ But so far as the scale of the poem was concerned he adhered almost exactly to his original purpose, dividing it into four books and finding in himself resources enough to draw them out, all except the first, to a little over a thousand lines each.

Throughout Keats’s work, the sources of his inspiration in his finest passages can almost always be recognized as dual, some special joy in the delights or sympathy with the doings of nature working together in him with some special stimulus derived from books. Of such a dual kind is the whole inspiration of Endymion. The poem is a joint outcome of his intense, his abnormal susceptibility to the spell of moonlight and of his pleasure in the ancient myth of the loves of the moon-goddess Cynthia and the shepherd-prince Endymion[1] as made known to him through the earlier English poets.

The moon was to Keats a power very different from what she has always been to popular astrology and tradition. Traditionally and popularly she was the governess of floods, the presiding planet of those that ply their trade by sea, river, or canal, also of wanderers and vagabonds generally: the disturber and bewilderer withal of mortal brains and faculties, sending down upon men under her sway that affliction of lunacy whose very name was derived from her. For Keats it was her transmuting and glorifying power that counted, not her pallor but her splendour, the magic alchemy exercised by her light upon the things of earth, the heightened mystery, poetry, and withal unity of aspect which she sheds upon them. He can never keep her praises long out of his early poetry, and we have seen, in ‘I stood tiptoe,’ what a range of beneficent activities he attributes to her. Now, as he settles down to work on Endymion, we shall find her, by reason of that special glorifying and unifying magic of her light, become for him, at first perhaps instinctively and unaware, but more and more consciously as he goes on, a definite symbol of Beauty itself—what he calls in a letter ‘the principle of Beauty in all things,’ the principle which binds in a divine community all such otherwise unrelated matters as those we shall find him naming together as things of beauty in the exordium of his poem. Hence the tale of the loves of the Greek shepherd-prince and the moon-goddess turns under his hand into a parable of the adventures of the poetic soul striving after full communion with this spirit of essential Beauty.

As to the literary associations which drew Keats to the Endymion story, there is scarce one of our Elizabethan poets but touches on it briefly or at length. Keats was no doubt acquainted with the Endimion of John Lyly, an allegorical court comedy in sprightly prose which had been among the plays edited, as it happened, by one of his new Hampstead friends, Charles Dilke: but in it he could have found nothing to his purpose. Marlowe is likely to have been in his mind, with

—that night-wandering, pale, and watery star, When yawning dragons draw her thirling car From Latmus’ mount up to the gloomy sky, Where, crowned with blazing light and majesty, She proudly sits.

So will Shakespeare have been certainly, with the call—