He wrote letters and one of his letters inspired him, after a walk across fields, to write this poem in 1819.
The poem is an ode (Addressed to a specific subject) -a ten line poem, however he uses 11 lines to mirror the abundance of nature. - structure - follows three stages of day and seasons
He was surrounded by death whilst growing up, as his siblings dies young. This can be seen in the last stanza
"Season of the mists and mellow fruitfulness"
Personifying autumn as a friend of the sun
Sets the tone creating an atmosphere that is warm
The use of alliteration emphasises the peacefulness of the season
"Load" "Bend" "Fill" "Swell" "Plump"
Verbs to create a rich image of abundance
Branches are heaving under the weight of fruit - ready to be harvested
Produce is overflowing - never ending growth
"Or by a cyder press, with patient look, Thou watchest the last oozings hours by hours"
Stanza 2 - now mid afternoon - autumn done its job - grown the food - now the workers must harvest the food
Describes how workers rest during the tough work of harvesting by hand - slow natural process of pressing apples
Image of sweet contentment
Scene is one of natural beauty
"Soft dying day" "gnats mourn"
Last stanza sees change of tone - sun sets - day turns to dusk
Autumn is "dying" as turns to winter
Mournful sounds of gnats signals a sense of loss as the season comes to and end
the "red breast" robin is a symbol of winter
"And gathering swallows twitter in the skies"
Final image is one of birds preparing to migrate to warmer climates as winter sweeps in
A sense of inevitability and loss is symbolised as the atmosphere of warmth and beauty changes to empty skies and colder weather
Hint of death could also link to Keats thoughts on death himself