I have pieces, yet I’m not a pie, I challenge your mind, make it fly. When all is done, I form a whole, And bring satisfaction to your soul.

I dance without legs, I soar without wings. I tug on my string, And fly when the wind sings.

I grow taller as you shrink, I hide when light is gone. I’m yours, yet no one can hold me, Followed from dusk till dawn.

I can prick but not bleed, I have an eye but cannot see. I travel through cloth, Yet never move freely.

You don't want to be up a creek without one of these.