[2] The work has been interpreted as a meditation on death; as an allegory of artistic creation; as Keats's response to the Peterloo Massacre, which took place in the same year; and as an expression of nationalist sentiment.
After the month of May, he began to pursue other forms of poetry, including the verse tragedy Otho the Great in collaboration with friend and roommate Charles Brown, the second half of Lamia, and a return to his unfinished epic Hyperion.
[3] His efforts from spring until autumn were dedicated completely to a career in poetry, alternating between writing long and short poems, and setting himself a goal to compose more than fifty lines of verse each day.
In his free time he also read works as varied as Robert Burton's The Anatomy of Melancholy, Thomas Chatterton's poetry, and Leigh Hunt's essays.
[4] Although Keats managed to write many poems in 1819, he was suffering from a multitude of financial troubles throughout the year, including concerns over his brother, George, who, after emigrating to America, was badly in need of money.
In a letter to his friend John Hamilton Reynolds written on 21 September, Keats described the impression the scene had made upon him and its influence on the composition of "To Autumn":[2] "How beautiful the season is now – How fine the air.
Think not of them, thou hast thy music too,— While barred clouds bloom the soft-dying day, And touch the stubble-plains with rosy hue; Then in a wailful choir the small gnats mourn Among the river sallows, borne aloft Or sinking as the light wind lives or dies; And full-grown lambs loud bleat from hilly bourn; Hedge-crickets sing; and now with treble soft The red-breast whistles from a garden-croft; And gathering swallows twitter in the skies.
[15] Of all of Keats's poems, "To Autumn", with its catalogue of concrete images,[16] most closely describes a paradise as realized on earth while also focusing on archetypal symbols connected with the season.
[25] Also, noted by both Bate and Jennifer Wagner, the structure of the verse reinforces the sense of something to come; the placing of the couplet before the end of each stanza creates a feeling of suspension, highlighting the theme of continuation.
[14] Others, like Harold Bloom, have emphasized the "exhausted landscape", the completion, the finality of death, although "Winter descends here as a man might hope to die, with a natural sweetness".
In "To Autumn", as a result of this process, the "rhythms" of the harvesting "artist-goddess" "permeate the whole world until all visual, tactile, and kinetic presence is transubstantiated into Apollonian music for the ear," the sounds of the poem itself.
[30] Later, Paul Fry argued against McGann's stance when he pointed out, "It scarcely seems pertinent to say that 'To Autumn' is therefore an evasion of social violence when it is so clearly an encounter with death itself [...] it is not a politically encoded escape from history reflecting the coerced betrayal [...] of its author's radicalism.
"[32] Britain's colonial reach over the previous century and a half had exposed the mother country to foreign diseases and awareness of the dangers of extreme tropical climates.
[36] Though the "clammy" aspect of "fever", the excessive ripeness associated with tropical climates, intrude into the poem, these elements, less prominent than in Keats's earlier poetry, are counterbalanced by the dry, crisp autumnal air of rural England.
[39] Thomas McFarland, on the other hand, in 2000 cautioned against overemphasizing the "political, social, or historical readings" of the poem, which distract from its "consummate surface and bloom".
[42] In 2012 a specific probable location of the cornfield that inspired Keats was discussed in an article by Richard Marggraf Turley, Jayne Archer and Howard Thomas, which draws upon new archival evidence.
Marggraf Turley, Archer and Thomas argue that the ode was more directly inspired by Keats's visit to St Giles's Hill—site of a new cornfield—at the eastern extremity of the city.
[45] "To Autumn" employs poetical techniques which Keats had perfected in the five poems written in the Spring of the same year, but departs from them in some aspects, dispensing with the narrator and dealing with more concrete concepts.
There is also an emphasis on long vowels which control the flow of the poem, giving it a slow measured pace: "...while barred clouds bloom the soft dying day".
An anonymous critic in the July 1820 Monthly Review claimed, "this writer is very rich both in imagination and fancy; and even a superabundance of the latter faculty is displayed in his lines 'On Autumn,' which bring the reality of nature more before our eyes than almost any description that we remember.
[...] If we did not fear that, young as is Mr K., his peculiarities are fixed beyond all the power of criticism to remove, we would exhort him to become somewhat less strikingly original,—to be less fond of the folly of too new or too old phrases,—and to believe that poetry does not consist in either the one or the other.
[59] In an 1851 lecture, David Macbeth Moir acclaimed "four exquisite odes,—'To a Nightingale,' 'To a Grecian Urn,' 'To Melancholy,' and 'To Autumn,'—all so pregnant with deep thought, so picturesque in their limning, and so suggestive.
[61] John Dennis, in an 1883 work about great poets, wrote that "the 'Ode to Autumn', ripe with the glory of the season it describes—must ever have a place among the most precious gems of lyrical poetry.
"[62] The 1888 Britannica declared, "Of these [odes] perhaps the two nearest to absolute perfection, to the triumphant achievement and accomplishment of the very utmost beauty possible to human words, may be that to Autumn and that on a Grecian Urn".
[63] At the turn of the 20th century, a 1904 analysis of great poetry by Stephen Gwynn claimed, "above and before all [of Keats's poems are] the three odes, To a Nightingale, On a Grecian Urn, and To Autumn.
"[69] Literary critic and academic Helen Vendler, in 1988, declared that "in the ode 'To Autumn,' Keats finds his most comprehensive and adequate symbol for the social value of art.
"[70] In 1997, Andrew Motion summarised the critical view on "To Autumn": "it has often been called Keats's 'most ... untroubled poem' [...] To register the full force of its achievement, its tensions have to be felt as potent and demanding.
"[72] Timothy Corrigan, in 2000, claimed that "'To Autumn' may be, as other critics have pointed out, his greatest achievement in its ability [...] to redeem the English vernacular as the casual expression of everyday experience, becoming in this his most exterior poem even in all its bucolic charm.
[74] In 2008, Stanley Plumly wrote, "history, posterity, immortality are seeing 'Ode to a Nightingale,' 'Ode on a Grecian Urn,' and 'To Autumn' as three of the most anthologized lyric poems of tragic vision in English.