Answer:
I'm the source of all emotion but I'm caged in a white prison.
When it comes to me, you go on red and stops on green. What am I?
I mean goodbye for South Americans.
With a halo of water and a tongue of wood, stone as skin long I stood. What am I?
I am higher than the king. What am I ?
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.