17 February – Hidden below

I wonder, when the dale is covered in snow,
whether they all know about it, down below?
Deep in the river, in that hidden underworld
I forget is even there, as I walk above it all.
And this makes me question, more generally,
who is swimming past, that I cannot see?
Are there swarms of eels racing schools of brown trout?
Which larvae are down there, lurking about?
For all my adventures and lessons in natural history,
underwater life still retains this air of mystery;
for I walk along the river searching surface, ground and sky
but am blind to fish and insects rushing quietly by.