Device used in "The raven" and " The incident in the rose garden"

In "The Raven" by edgar allan poe .

Edgar uses rhythem meter this device plays a larger role. He uses it when he says, " once upon a midnight dreary, while i pondered, weak and weary." It plays a large role because  " the raven" is a lyric poem, witch often have specific rhythms. This device will also Keep the reader entertained. 

In " The incident in the Rose Garden" by Donald justice. Uses the device imagery that plays a lager role. He uses it when he says " and there stood  death in the garden, dress like a Spanish waiter." It plays a large role because imargery makes the reader to create and picture what a Spanish waiter standing in a garden would look like.