Very well-written. I can percieve a mature voice in this poem, and the somewhat sad, yet content outlook that I picked up from it is very satisfying to me. Add that to the beautiful imagery, and it's a great poem. The only (very minor) thing that bothered me was the capitalization at the beginning of each line; my brain naturally starts a new sentence on capitalization, and that was a tiny nuisance.
I like nonsense, it wakes up the brain cells. Fantasy is a necessary ingredient in living, it's a way of looking at life through the wrong end of a telescope. Which is what I do, and that enables you to laugh at life's realities. — Dr. Seuss