The term "Suspiria" generally refers to Thomas De Quincey's 1845 collection of gothic prose poems, Suspiria de Profundis , and Henry Wadsworth Longfellow's 1849 poem about death and eternity. It is also famously associated with the "Three Mothers" mythology and various musical tracks, including works by Thom Yorke and Flatbush ZOMBiES. thomas de quincey. - Project Gutenberg