Read it through once

One grand merit of blank verse is in the SWEEP of it; another, in its pause-melody, which can be secured only by a skilful recurrence of an unbroken measure; without this, variety of pause ceases to be variety, and results in a metrical chaos; a third is in its lightsomeness of movement, its go, when well-freighted with thought. All these merits are found united in much of Browning’s blank verse, especially in that of ‘The Ring and the Book’. As an example of this, take the following passage from the monologue of the Canon Caponsacchi. It gives expression to his vision of Count Guido’s spiritual down-sliding; “in the lowest deep a lower deep still threatening to devour him, opens wide”:--