Answer:
A young man wants to have me but when he has me he no longer wants me. Blade in hand he attacks me and does his best to remove me. Yet he knows that it is all in vain.
What can be drawn but never taken?
Lovely and round I shine with pale light grown in the darkness a lady's delight.
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. What am I?
I am not alive but I grow I don't have lungs but I need air I don't have a mouth but water kills me. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?