The poem progresses in accord with qualities or powers given to Autumn. In stanza one Autumn is an internal force, expanding and making the world grow. In stanza two, Autumn is manifested in human beings, replete and satisfied in the security of the harvest. In stanza three, Autumn is a bringer of sounds and evening songs, all heard through the air illuminated by the rosy sun. There is a twist on convention here, for autumn in the tradition of pastoral poetry is a time of decline that leads to winter as a time of death. Keats’s emphasis on the fruitfulness of the season therefore illustrates the security provided by Autumn as personified as the grower and harvester.