Only here in the Odyssey is the hero Tīthōnos ever mentioned, O.05.001. In the Iliad, there is a parallel mention of Tīthōnos at I.11.001. The wording of O.05.001–002 here matches the wording of I.11.001–002. The story of the abduction of Tīthōnos by Ēōs, goddess of dawn, is told in the Homeric Hymn to Aphrodite 218–238. The liaison between the mortal man Tīthōnos and the immortal goddess Ēōs is parallel to the liaison between the mortal man Anchises and the immortal goddess Aphrodite. And, as a result of both these affairs, the mortal man is permanently damaged. In the case of Tīthōnos, he loses his youth though he holds on to life, but old age renders him immobile, as we read in the Homeric Hymn to Aphrodite, verse 234. In the case of Anchises, he too is afflicted with immobility—which is why his son Aeneas has to carry him on his shoulders in ancient depictions of that hero’s escape from Troy together with his family (for a splendid example, I refer to a vase painting dated to the early fifth century BCE, British Museum inventory number 1836.0224.138). Such stories of permanent damage are relevant to the story of the affair between Odysseus and the goddess Calypso. In sum, the fact that Rhapsody 5 begins with a reference to an affair between a mortal man and an immortal goddess indicates the dangers that now threaten Odysseus.