"Gaze no more in the bitter glass
The demons, with their subtle guile,
Lift up before us when they pass,
Or only gaze a little while;
For there a fatal image grows
That the stormy night receives,
Roots half hidden under snows,
Broken boughs and blackened leaves.
For all things turn to bareness
In the dim glass the demons hold,
The glass of outer weariness,
Made when God slept in times of old.
There, through the broken branches, go
The ravens of unresting thought;
Flying, crying, to and fro,
Cruel claw and hungry throat,
Or else they stand and sniff the wind,
And shake their ragged wings: alas!
Thy tender eyes grow all unkind:
Gaze no more in the bitter glass.
"
—
William Butler Yeats