Answer:
I make everyone blind. You can't see me but I will always come back for you. What am I?
My snake-like body cracks and burns. I cause pain but pleasure too. What am I?
Born in the ocean and white as snow. When I fall back to water, I disappear without a trace. What am I?
I am drawn by everyone without pen or pencil. What am I?
I fill a room but take no space.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.