I ordered this, this clean wood box
Square as a chair and almost too heavy to lift.
I would say it was the coffin of a midget
Or a square baby
Were there not such a din in it.
The box is locked, it is dangerous.
I have to live with it overnight
And I can't keep away from it.
Plath’s humour emerges with the phrase ‘din in it’. The  assonant  letter ‘i’ throughout the stanza — in ‘I’, ‘lift’, ‘midget’ — appears again in the last line. The effect of the assonance at the end of the stanza, in particular,  forces you to slow down and enunciate each word carefully.
The Arrival of the Bee Box