Sea changes

Full fathom five, thy father lies, Of his bones are coral made,
Those are pearls that were his eyes, Nothing of him that doth fade,
But doth suffer a sea-change, into something rich and strange,
Sea-nymphs hourly ring his knell, Ding-dong.
Hark! now I hear them, ding-dong, bell.
William Shakespeare: The Tempest

I hadn't heard this expression for many a year. Then three times within the last week it occurred.
Odd, because I have recently started a E. J. Howard novel "The Sea Change".