“Ye sister Nereids! to your deeps descend; Haste, and our father’s sacred seat attend; I go to find the architect divine, Where vast Olympus’ starry summits shine: So tell our hoary sire”—This charge she gave: The sea-green sisters plunge beneath the wave: Thetis once more ascends the bless’d abodes, And treads the brazen threshold of the gods.