The editors of the Library Edition
describe the image as a “sketch of a bishop beneath a canopy, with other figures”
(Ruskin, Works, 2:343 n. 1).
The vignette refers to the Roman Catholic procession mentioned in the preceding poem,
" target="_self">“The way was long, and yet ʼtwas sweet” [“Cassel”, poem].
The procession that the Ruskins witnessed at Cassel celebrated Ascension Day,
but details in the drawing suggest that Ruskin may have conflated this event with a procession of Corpus Christi, in which
the priest carries a monstrance beneath a canopy borne by attendants
(see glosses for " target="_self">“Cassel” [poem]).