important transcendentalism question

i need this explained to me andd maybee a few examples of what to say, its an essay questions, please and thx
:)
" Citing the excerpt from Emerson's Nature, along witht he "Where I Lived, And What I Lived For" and "The Pond in Winter" chapters from Thoreau's Walden, discuss in what ways the two spokesmen of American transcedentalism clarify transcendentalist concepts, in particular the operation of the Over-Soul and the preference for nature over civilization."