Quote from : The Sandman, Vol. 4: Season of Mists Book

It is said that scattered through Despair's domain are a multitude of tiny windows, hanging in the void. Each window looks out onto a different scene, being, in our world, a mirror. Sometimes you will look into a mirror and feel the eyes of Despair upon you, feel her hook catch and snag on your heart. Despair says little, and is patient.