Commentary Inf III 73-75
Many commentators, beginning perhaps with Trifon Gabriele (Gabr.1993.1), p. 20, and his student, Bernardino Daniello (DDP Daniello.Inf.III.70-81), cite apposite lines from Virgil (Aen. VI.318-319), Aeneas's inquiry of the Sibyl as to the motives leading the dead to desire to cross Acheron: 'dic,' ait, 'o virgo, quid volt concursus ad amnem? / quidve petunt animae?'