This aptly titled poem, "The New Year," by Dinah M. Craik, is a well written metaphor about the fragile, yet hopeful feelings surrounding the incoming new year.
Bonus: The entire poem acts as a metaphor, but it also incorporates personification and some alliteration too.
The New Year by Dinah M. Craik
Who comes dancing over the snow,
His soft little feet all bare and rosy?
Open the door, though the wild winds blow,
Take the child in and make him cozy,
Take him in and hold him dear,
He is the wonderful glad New Year.