This video has the power to transform your riding! American Tai Chi expert James Shaw offers insights that will trigger some 'light bulb' moments. Working with Grand Prix dressage rider Hannah Biggs and her stallion Weltzin, James explains the root causes of tension and a system for riding effortlessly. He shows Hannah how her breathing controls rhythm and timing and how she can use her seat bones as weight aids. James says "by lowering your centre of gravity, you set the horse up for collection". His main aim is to use the horse's force and shape it, not block it, or use leverage against it. Hannah and Weltzin change before our very eyes. Amazing!