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. What am I?
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?
I regularly change shape yet remain a sphere. I am always there but not often seen. What am I?
I had a bright start but I couldn't take the pressure. I consume everything yet I don't eat anything.
When is it bad luck to see a black cat?