Cloud Hands "internal discipline" as seen from back view

Cloud Hands "internal discipline" as seen from back view
A good majority of Round Form internal movements of postures are "open and close", "open and close" with the body opening fully before the other half body closes. Round Form Cloud Hands "open and close" on the horizontal or "x" axis is less emphasized. Here instead the emphasis is on an "up and down" vertical or "Y" axis. It is an up and down stretch and energy flow along the vertical axis of the back. One can see the movement going up and down along either side of the back as split by the spinal column. On Master Hwa's back one can see the wrinkle of his shirt showing the stretch but an enlarged view does accurately show the muscle movement going up and down.
via YouTube https://www.youtube.com/watch?v=qgmyq3mqewU