770
I lived on Dread—
To Those who know
The Stimulus there is
In Danger—Other impetus
Is numb—and Vitalless—
As 'twere a Spur—upon the Soul—
A Fear will urge it where
To go without the Sceptre's aid
Were Challenging Despair.
Emily Dickinson
http://www.poemhunter.com/poem/i-lived-on-dread/