between wave and rocky beach
that marks the furthest reach of the sea,
I find, half-buried in a bed of kelp,
a curious lucent closed pocket,
tendrils dangling from each corner,
so named a mermaid's purse.
Within, a tiny dogfish quivers alive,
waiting for the moon to rise,
the waves to return,
life to begin.

Photo taken at the Brough of Birsay, Orkney, Scotland, September, 2009.