The poet seems here to mean that in the seeker's transient hour of union with his unknown divinity capacities for thought and emotion have been awakened in him richer and more spiritually illuminating than he has known before. The strange sounds which reach him are the rushing of the streams of the river-god Alpheus and the fountain-nymph Arethusa; Arethusa fleeing, Alpheus pursuing (according to that myth which is told most fully by Ovid and which Shelley's lyric has made familiar to all English readers); he entreating, she longing to yield but fearing the wrath of Diana. Endymion, who till now has had no thought of anything but his own plight, is touched by the pangs of these lovers and prays to his goddess to assuage them. We are left to infer that she assents: they plunge into a gulf and disappear: he turns to follow a path which leads him in the direction of a cooler light and a louder sound: --and lo! More suddenly than doth a moment go, The visions of the earth were gone and fled-- He saw the giant sea above his head. Throughout this second book Keats has been content to let the mystery and 'buried magic' of the under-world reveal itself in nothing of more original invention or of deeper apparent significance than the spring awakening of Adonis and the vision of the earth-goddess Cybele. His under-world is no Tartarus or Elysium, no place of souls: he attempts nothing like the calling-up of the ghosts of dead heroes by Ulysses in the _Odyssey_, still less like the mystic revelation of a future state of rewards and punishments in the sixth book of the _Aeneid_. Possibly the visit of the disguised Diana is meant to have a double meaning, and of her three characters as 'Queen of Earth, and Heaven, and Hell,' to refer to the last, that of a goddess of the under-world and of the dead, and at the same time to symbolize the power of the spirit of Beauty to visit the poet's soul with joy and illumination even among the 'dismal elements' of that nether sphere. Into the rest of the underground scenery and incidents it is hard to read any symbolical meaning or anything but the uncontrolled and aimless-seeming play of invention. But in what is now to follow we are conscious of a fuller meaning and a stricter plan. That from Diana, conscious of her own weakness, indulgence for the weakness of her nymph Arethusa should be won by the prayer of Endymion, now for the first time wrought to sympathy with the sorrows of others, is a clear stage in the development of the poet's scheme. The next stage is more decisive and significant still.