the will to act, and the power to feel; and ought to appeal to these different parts of the constitution, in order to be perfect."[77] In treating of the specific distinction of poetry Hazlitt does not escape the usual difficulties. Taking his point of departure from Milton's "thoughts that voluntary move harmonious numbers," he defines poetry in a passage that satisfactorily anticipates the familiar one of Carlyle, as "the music of language answering to the music of the mind.... Wherever any object takes such a hold of the mind as to make us dwell upon it, and brood over it, melting the heart in tenderness, or kindling it to a sentiment of enthusiasm;--wherever a movement of imagination or passion is impressed on the mind, by which it seeks to prolong or repeat the emotion, to bring all other objects into accord with it, and to give the same movement of harmony, sustained and continuous, or gradually varied according to the occasion, to the sounds that express it--this is poetry. The musical in sound is the sustained and continuous; the musical in thought is the sustained and continuous also. There is a near connection between music and deep-rooted passion."[78] In this mystical direction a definition could go no further, but like nearly all writers and speakers Hazlitt is inclined to use the word poetry in a variety of more or less connected meanings,[79] ordinarily legitimate enough, but somewhat embarrassing when it is a question of definition. "That which lifts the spirit above the earth, which draws the soul out of itself with indescribable longings, is," he says, "poetry in kind, and generally fit to become so in name, by 'being married to immortal verse.'"[80] If it is true that Pilgrim's Progress and Robinson Crusoe possess the "essence and the power of poetry" and require only the addition of verse to become absolutely so,[81] then the musical expression is only a factitious ornament, to be added or removed at the caprice of the writer. But Hazlitt is careful to declare that verse does not make the whole difference between poetry and prose, leaving the whole question as vaguely suspended as ever.[82]