Answer:
Without a bridle or a saddle across a thing I ride a-straddle. And those I ride by help of me though almost blind are made to see.
Who keeps the ocean clean?
I must be broken before you can use me.
Never resting, never still. Moving silently from hill to hill. It does not walk, run or trot. All is cool where it is not. What is it?
I hatch without food
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?