Question

Read this description of the Ohio farm in autumn in Walt Whitman’s “Come Up from the Fields Father”:
Lo, 'tis autumn,
Lo, where the trees, deeper green, yellower and redder,
Cool and sweeten Ohio's villages, with leaves fluttering in the moderate wind,
Where apples ripe in the orchards hang and grapes on the trellis'd vines,
(Smell you the smell of the grapes on the vines?
Smell you the buckwheat where the bees were lately buzzing?)

What does Whitman’s description of the autumn farmlands in Ohio symbolize in “Come Up from the Fields Father”?

wrath and grief
suffering and lo