Analysis of A Parable

BETWEEN the sandhills and the sea
A narrow strip of silver sand,
Whereon a little maid doth stand,
Who picks up shells continually
Between the sandhills and the sea.

Far as her wondering eyes can reach
A Vastness, heaving grey in grey
To the frayed edges where the day
Furls his red standard on the breach,
Between the skyline and the beach.

The waters of the flowing tide
Cast up the seapink shells and weed;
She toys with shells, and doth not heed
The ocean, which on every side
Is closing round her vast and wide.

It creeps her way as if in play,
Pink shells at her pink feet to cast;
But now the wild waves hold her fast,
And bear her off and melt away
A Vastness heaving gray in gray.