This simile refers to Pegasus, the winged horse of Greek myth. Pegasus was the progeny of Poseidon, the god of the Sea, and the gorgon Medusa, from whose severed neck he sprang. A friend of the Muses, he is associated with wisdom, poetry and literary inspiration. After assisting the hero Bellerophon in his victorious battle against the fire-breathing Chimera, Pegasus ascends to Mount Olympus, the home of the gods, where he is stabled by Zeus and entrusted with the responsibility of carrying his thunderbolts. On his death, Zeus transforms Pegasus into a constellation, giving him permanent residence in the night sky.