I stumbled across this video quite by accident. I was video-grazing through a site called The Kid Should See This. Wonderful place. Really. They'd posted this vid of an acrobatic act that I had no idea existed. It is the definition of fluid and graceful. The performer is Angelica Bongiovanni. There is a moment of video glitch towards the end, but it goes away and does not detract from the absolute wonder of the performance. Give it a watch! Money back if you're not entranced.