George Xu Teaching Vertical Force, Rising Force, Gravity Exercises

In his Annual Weekend Workshop to Cortez, Colorado July, 2015, Master George Xu available on streaming video at mastersfromchina.com. Touch arm touch ground. Body is like conduit through which energy is transmitted to the ground. How to do this? "What you think is what is." Sink and return energy, body energy attacks first, not arm.
Master Xu demonstrates with a student the process in two-person testing of taking your opponents energy to the ground, melting and giving them qi intention, and coming back from ground to uproot them. . . . all effortlessly, with no jing, and power.
Vertical Force uses ribs and spine from feet and dantien, not shoulder.
Rising force balanced with sinking force, more down, more up.
Gravity, entire body force, is created by connecting arm to rib and spine from feet.

[@rcabletn]

With " cleaning the Window " is the movement of Kua necessary ? In other words, is the Kua used to prevent breakdown of structure ?

[@susanamatthews]

Absolutely, any movement corresponds with internal movement of mind, qi and physical. Specifically, screwing in the feet causes the kua/pelvis to 'tuck' up and connects the back. Better than physically 'doing it' is to sink the qi to connect the back.