In a Mark McCormack newspaper column. Ultrasuccessful performancers -- sport figures : "they seems to intuitively know how to minimize distractions and focus their energy at the precise level required, no more, no less. They handle themselves so well it seems effortless."
Actually that is the characteristics of a good tai chi practitioner. Relax and Calm. Intent and Focus. No wasted movement, no wasted power. How many thousand years of wisdom?