“A symbolic unity formed by the languor of the fluids, by the darkening of the animal spirits and the shadowy twi­light they spread over the images of things, by the viscosity of the blood that laboriously trickles through the vessels, by the thickening of vapors that have become blackish, deleterious, and acrid, by visceral functions that have be­come slow and somehow slimy-this unity, more a product of sensibility than of thought or theory, gives melancholia its characteristic stamp.”