Answer:
Alive without breath, As cold as death, Clad in mail never clinking, Never thirsty, ever drinking
I have it, I don’t share it. If I share it, I don’t have it. What is it?
A box without hinges, lock or key, yet golden treasure lies within.
Creatures of power, creatures of grade, creatures of beauty, creatures of strength. As for their lives, they set everything's pace. For all things must come to live. Under their emerald embraceÂ…Either in their life or in their death.
At night I come without being fetched. By day I am lost without being stolen.
I'm the source of all emotion but I'm caged in a white prison.