I guess....
You do not know what Kung Fu actually is and you do not know what Tai Chi is.
Plus, you do not know the differences between Tai Chi & Yoga.
http://www.youtube.com/watch?v=qqFXG1xLOzA&mode=related&search=
http://www.youtube.com/watch?v=faxW0GcyyDo&feature=related...