W. S. Merwin: "Grace Note"

It is at last any morning

not answering to a name

I wake before there is light

hearing once more that same 

music without repetition

or beginning playing

away into myself

in silence like a wave

a unison in its own

key that I seem 

to have heard before I

was listening but by the time

I hear it now it is gone

as when on a morning

alive with sunlight

almost at the year's end

a feathered breath a bird

flies in at the open window

then vanishes leaving me

believing what I do not see