This is the Hour of Lead --
Remembered, if outlived,
As Freezing persons, recollect the Snow --
First --Chill --then Stupor --then the letting go --.
Source: The Complete Poems of Emily Dickinson, no. 341, ed. Thomas H. Johnson, 1955.
-- Emily Dickinson, (Dec 10 1830-1886), US poet; She was a reclusive stylist who combined spare lyricism with unorthodox diction.