Read "Slaughter-House in Spring" at The Eldritch Dark:
This is the first in a series of haiku that Clark Ashton Smith (CAS) wrote about the abattoir located not far from his home in Auburn, California. Living close to such a grim enterprise clearly had an impact on the poet, as abattoirs are mentioned multiple times throughout his literary corpus, notably in these starkly beautiful lines from scene III of his verse play The Dead will Cuckold You (1951):
Some ancient trot's whitleather hide,
But he'll fly soon to the abattoir
And the pooling blood where the stuck pig died.
"Slaughter-House in Spring" feels spiritually related to the lines quoted above, as the grisly phenomena of the opening line are characterized as a "Taint" whose corruption fouls the "flowers and mossy stones." Probably few human beings truly love abattoirs, but CAS views them as a source of iniquity, despoilers of beauty and nature.