1. Sight:
* "Season of mists and mellow fruitfulness..." - The very first line paints a picture of soft, hazy light filtering through the autumn air, hinting at ripeness and bounty.
* "...Close bosom-friend of the maturing sun..." - The sun itself is personified, close and intimate with the earth, nurturing the harvest.
* "Conspiring with him how to load and bless..." - The imagery suggests a collaboration between the sun and nature, a united effort towards abundance.
2. Sound:
* "The soft-dying day..." - The subtle dying of the day suggests a peaceful transition and the gentle end of summer's heat.
* "The red-breast whistles from a garden-croft..." - This sound brings to mind the quiet, almost melancholic chirping of birds, a common sight in autumn.
* "...And gathers up his wings..." - This visual image of a bird gathering its wings is also an auditory experience, a quiet rustling of feathers.
3. Touch:
* "...The stubble-plains..." - The rough texture of stubble fields is palpable, suggesting the harvest has been reaped and the land is now resting.
* "...The cider-press..." - The imagery of the cider-press, with its pressing and squeezing, evokes a tactile experience of the fruit being transformed.
* "...The half-reaped furrow..." - This imagery conveys the feel of the earth, still warm from the summer sun, and the recent work of harvesting.
4. Taste:
* "...And singing in the apple-tree..." - The sweetness of the apples is almost tasted through the sound of the song, a celebration of the harvest's bounty.
* "...The full-grown lambs..." - The taste of the lamb, a symbol of nourishment, is suggested, reminding us of the cycle of life and sustenance.
5. Smell:
* "...The scent of the ripe pear..." - Keats captures the essence of autumn with the sweet, fragrant smell of ripe pears, evoking a sense of satisfaction and fulfillment.
* "...The mellowed sunlight..." - The smell of the earth after a summer's warmth is suggested, a comforting and familiar scent.
Fulfillment Through Sensory Detail:
The overall effect of these sensory details is one of abundance, ripeness, and completion. Autumn is not merely a time of decline, but a time of culmination, of the earth reaching its peak before preparing for its winter slumber. The richness of sensory detail emphasizes the cyclical nature of life, the sense of completion before renewal.
In essence, Keats uses sensual imagery to create a sense of harmonious fulfillment. The world is at peace, nature is content, and the reader feels a sense of deep satisfaction, mirroring the fulfillment of the season itself.