Answer:
Lovely and round, I shine with pale light, grown in the darkness, a lady's delight.
What force and strength cannot get through. I, with a gentle touch, can do. Many in the street would stand. Were I not a friend at hand.
Three lives have I. Gentle enough to soothe the skin. Light enough to caress the sky. Hard enough to crack rocks.
What measures out time until in time all is smashed to it?
I usually wear a yellow coat. I usually have a dark head. I make marks wherever I go.
The strangest creature you'll ever find: Two eyes in front and many many more behind.