I'm not a Dickinson expert, but my sense is that "Hope Is the Thing with Feathers" is a favorite for many. I like the central metaphor of hope as a bird and the title's focus on feathers--maybe a bird's most fragile feature. However, E.D.'s development of that idea is a little sweet for my tastes, especially compared to the complexity of so many of her better poems.
On the other hand, I get sappy about birds, and cardinals in particular. I stumbled onto the video below while looking for images of cardinal chicks--I'm pretty sure I had one this morning, just after first light, with mom and dad at the platform feeder.
When I consider that chick, that plump grey ball, becoming Mr. Red adult--or Mrs. More Modest Red--one word that comes to mind is magic. Ditto the video's excellent close-ups of a cardinal's landings in some snow. Whatever else he might be, the cardinal as a metaphor for hope is a perfectly reasonable notion.
Hope is the thing with feathers
YouTube - Cardinal landing close up
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