Long have I been frightened of the sepulcher of night
And sleep in sightless, dragging hours
The moon herself provides no light
Inside my well-lit wakeful bower.
But now the lights have gone away
And leaving me, thus, in the dark
My dog, alerted, starts to bay;
I do not know what made him bark.
Perhaps it was a dream in sleep-
Or perhaps he heard a deer.
Perhaps he saw a spider creep;
Perhaps 'twas everything I fear.
For there are those-
And this may be-
Who, based on what they know, suppose
That animals see more than we ...