Answer:
The higher I climb, the hotter I engage. I cannot escape from my crystal cage.
If I have it, I don't share it. If I share it, I don't have it. What is it?
Until I am measured I am not known, Yet how you miss me when I have flown.
A muttered rumble was heard from the pen, and I, in my walking stopped to look in. What was this I saw? A massive beast, hoofed, and jawed. With spikes upon its mighty brow, I watched as he struck the turf and prowled. And yet for all of his magnificence, he couldn't get out of that wooden fence.
What is it something that you always have but you always leave behind?
I can only be played on a windy day