* "While I pondered, weak and weary": This line uses the idiom "weak and weary" to emphasize the narrator's state of exhaustion and mental fragility.
* "Once upon a midnight dreary": This line uses the phrase "once upon a midnight dreary" to establish a gothic, ominous tone and introduce the setting of the poem.
* "In the bleak December": The phrase "bleak December" is often used to evoke feelings of sadness, desolation, and the emptiness of winter. It contributes to the poem's melancholic atmosphere.
* "Quoth the raven 'Nevermore'": This line is a bit more complex. While not an idiom in the traditional sense, the repetition of "Nevermore" becomes a defining element of the poem. It creates a sense of dread and hopelessness, and acts as a refrain.
It's important to note that Poe was a master of using language in a unique and evocative way. He often crafted phrases that, while not necessarily idioms, became memorable and associated with his writing.
It's also worth noting that the poem uses a lot of figurative language, particularly metaphors and personification to convey its themes of loss, grief, and despair. These contribute significantly to the poem's impact and meaning, even if they don't necessarily fit into the traditional definition of an idiom.