Answer:
A precious gift, yet it has no end, no beginning, and nothing in the middle.
It is in every mountain, it's not in any hill, it's not in all the world, and yet it's in the mill.
I reach for the sky, but clutch to the ground. Sometimes I leave, but I am always around
Other terms for this handy device include doohicky, doo-dad, and whatchyamacallit.
In spring I look gay, Covered in a green array, The warmer it gets the more clothing I wear, As the cold grows, I throw away my clothes.
It is something you will never see again.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?