Dickinson, Emily. “Much Madness is Divinest Sense.” Barbaric Vast and Wild: A Gathering of Outside & Subterranean Poetry from Origins to Present, edited by Jerome Rothenberg and John Bloomberg-Rissman, Black Widow Press, 2015, pp 134-37.
Poem Available at Poetry Foundation: https://www.poetryfoundation.org/poems/51612/much-madness-is-divinest-sense-620