Answer:
I am a shimmering field that reaches far. Yet I have no tracks and am crossed without paths.
In many hall ways you would stand if not with me in hand.
The more you take away from it the larger it becomes. What is it?
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
What gets sharper the more you use it?
I never sleep yet sometimes I weep. I can get angry or just be happy. Wherever you go, I will follow. No matter what you do, I will be there. I cannot die. What am I?