Methinks I see the sunset light flooding the river valley, the western hills stretching to the horizon, overhung with trees gorgeous and glowing with the tints of autumn—a mighty flower garden, blossoming under the spell of the enchanter, Frost...

In this richly pictorial sentence, Whittier frames an autumn landscape as a kind of enchantment: ordinary geography (river valley, western hills, tree cover) is transfigured by seasonal change into a “mighty flower garden.” The personification of Frost as an “enchanter” highlights the paradox of autumn beauty—color and splendor produced by cold, decline, and the approach of winter. The diction (“Methinks,” “gorgeous and glowing”) evokes a contemplative, almost visionary stance, suggesting memory or imaginative seeing rather than mere description. The passage fits Whittier’s broader tendency to sacralize New England nature and to treat seasonal cycles as moral and emotional symbols.