I’ve been told that we should generally leave a few shadow
threads in each of our poems even if only for contrast.
To go into the dark with a light is to
know the light.ie. go dark.
Go without sight, and find that the dark, too,
blooms and sings,
and is traveled by dark feet and dark wings.
Wendell Berry
Man’s shadow, I thought, is his vanity.
Friedrich Nietzsche
This thing of darkness I acknowledge mine.
Shakespeare