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Metaphor
Explanation: Below Is What it Means
So, often when our speaker gets in these downer moods, the image of the daffodils "flashes" through his mind. The "inward eye" expresses what Wordsworth felt to be a deeper, truer spiritual vision.
Here “inward eye” represents the sweet memory of daffodils. Imagery: The use of imagery makes the reader visualize the writer's feelings and emotion.
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