Thy soul shall find itself alone 'Mid dark thoughts of the gray tombstone— Not one, of all the crowd, to pry Into thine hour of secrecy. Be silent in that solitude, Which is not loneliness—for then The spirits of the dead who stood In life before thee are again In death around thee—and their will Shall overshadow thee: be still.

The Complete Works of Edgar Allan Poe (ed. 1908)