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What type of literary device is demonstrated in this passage from the monkeys paw father and son

What does water came out from a rock mean in this poem and why is it compared to the radio waltz? time was away and somewhere else. the waiter did not come, the clock forgot them and the radio waltz came out like water from a rock: time was away and somewhere else.

Which sentence is the best translation of "you have displaced the mirth" broken the good meeting, / with most admired disorder"?