Needlework: Seams

I was sewing a seam one day —
Just this way —
Flashing four silver stitches there
With thread, like this, fine as a hair,
And then four here, and there again,
When
The seam I sewed dropped out of sight
I saw the sea come rustling in,
Big and grey, windy and bright . . .
Then my thread that was as thin
As hair, tangled up like smoke
And broke.
I threaded up my needle, then —
Four here, four there, and here again.