This is from a few lines of Seamus Heaney’s prose in which he imagines how Philip Larkin might have approached writing his own version of The Divine Comedy.  I like the ‘wind-tousled sky’ which reminds me of a similar triologism by Larkin. 

Source: Seamus Heaney, Finders Keepers: Selected prose 1971-2001 (London: Faber and Faber, 2003), p. 152