Which of these excerpts from poems by Emily Dickinson uses irony?
 My cocoon tightens, colors tease,
 I'm feeling for the air;
 A dim capacity for wings
 Degrades the dress I wear.
 Could she have guessed that it would be;
 Could but a crier of the glee
 Have climbed the distant hill;
 Had not the bliss so slow a pace, —
 Who knows but this surrendered face
 Were undefeated still?
 One dignity delays for all,
 One mitred afternoon.
 None can avoid this purple,
 None evade this crown.
 There's a certain slant of light,
 On winter afternoons,
 That oppresses, like the weight
 Of cathedral tunes.
 Heavenly hurt it gives us;
 We can find no scar,
 But internal difference
 Where the meanings are.
 Exultation is the going
 Of an inland soul to sea, —
 Past the houses, past the headlands,
 Into deep eternity!