Answer:
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?
Large as a mountain, small as a pea, Endlessly swimming in a water-less sea.
What is it which builds things up? Lays mountains low? Dries up lakes, and makes things grow? Cares not a whim about your passing? And is like few other things, because it is everlasting?
Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed.
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
Do what he says and you'll be fine, don't and you lose the game.