The water is rhythmically hitting the shore, each time losing a bit of power.
The ebb and flow wear out the once strong tide.
It was meant to forever meet the shore, caress it gently, and return. Now it barely even reaches it.
Fish that were once the pride of the sea, now lost the drive to rule the water.
No treasure lies on the bottom, no worthy predator in the middle and no ships care to sail across the top.
And nobody will remember anything, not even that "forever" doesn't mean eternally powerful, it means constantly and endlessly degrading.
Destiny is a cruel and twisted illusion of purpose.