Keats' On The Sea

It keeps eternal whisperings around
    Desolate shores, and with its mighty swell
    Gluts twice ten thousand Caverns, till the spell
Of Hecate leaves them their old shadowy sound.
Often 'tis in such gentle temper found,
    That scarcely will the very smallest shell
    Be moved for days from where it sometime fell.
When last the winds of Heaven were unbound.
Oh, ye! who have your eyeballs vexed and tired,
    Feast them upon the wideness of the Sea;
        Oh ye! whose ears are dinned with uproar rude,
    Or fed too much with cloying melody---
        Sit ye near some old Cavern's Mouth and brood,
Until ye start, as if the sea nymphs quired!