Hell and night
Must bring this monstrous birth to the world’s light.

– William Shakespeare

Othello, Act 1, Scene 3. In the final lines of Iago’s soliloquy that ends Act 1, he revels in his evil plan to betray and destroy Othello. His sinister rhyming couplet uses metaphorical imagery of hell and monster, night and day, and childbirth, to describe bringing to life his nefarious plot. The passage is also an example of the animal imagery – "monstrous birth" – Shakespeare employs throughout the play.