How is the theme of nature tied to transcendentalism

He natural world has always been an important subject for poets and prose writers and is not an aspect that is dealt with exclusively by transcendental poets such as Ralph Waldo Emerson, Henry David Thoreau, and Walt Whitman, who are some of the most influential transcendental poets ... Whether in thepoetry of the era of Romanticism, including that of Wordsworth, Keats, and Shelley, the Gothic tales of Stoker, Shelley, and Poe, or the works by transcendentalists Emerson, Thoreau, and Whitman, nature serves as much more than simply a passive setting against which compelling actions unfold or a pretty backdrop or setting in the natural world. Rather, nature in all of the poems and essays by Emerson, Thoreau, and Walden is a living character through which human identity is constructed either through the characters’ alignment with the natural world or their struggle against it