Answer:
I am the first you ever saw, what greets you every morning and what goes out in the end.
He's small but he can climb a tower.
What has a neck and no head, two arms but no hands?
You can carry it everywhere you go, and it does not get heavy. What is it?
I call the trees my home, yet I never go inside, and if I ever fall off the tree I will be surely be dead.
It is something you will never see again.