Deaf and Dumb a Group by Woolner

Only the prism's obstruction shows aright
The secret of a sunbeam, breaks its light
Into the jewelled bow from blankest white;
So may a glory from defect arise:
Only by Deafness may the vexed Love wreak
Its insuppressive sense on brow and cheek,
Only by Dumbness adequately speak
As favored mouth could never, through the eyes.