Answer:
A tiny bead, like fragile glass, strung along a cord of grass.
Inside a great blue castle lives a shy young maid. She blushes in the morning and comes not out at night.
The person who makes it has no need for it. The person who purchases it does not use it. The person who does use it does not know he or she is. What is it?
I don't think or eat or slumber. Or move around or fear thunder. Just like you I look the same but I can't harm you or be your bane.
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.
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?