Answer:
I crawl on the earth. And rise on a pillar.
The more you take, the more you leave behind.
An iron horse with a flaxen tail. The faster the horse runs, the shorter his tail becomes.
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
What has one eye but cannot see?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.