And the sea trickling out of my eye as if I'd always carried it inside me, like a seashell waiting to be cupped to an ear.

The grotto itself comprises its own slick universe, and inside this universe spin countless galaxies: here, in the upturned half of a single mussel shell, lives a barnacle and a tiny spindle shell occupied by a still smaller hermit crab. And on the shell of the crab? A yet smaller barnacle. And on that barnacle?