hope is the thing with feathers

From wikipedia: "The mythology of the bluebird of happiness has deep roots that go back thousands of years. . .It is the most universally accepted symbol of cheerfulness, happiness, prosperity, hearth and home, good health, new births, the renewal of springtime, etc."

And sweetest in the gale is heard/And sore must be the storm

That could abash the little bird/That kept so many warm.