Consider the contrast of a majestic weeping willow tree with that of an evergreen tree. Jeff uses the analogy that we should be like the weeping willow, able to move and flow with change, yet come back to our center. The evergreen is strong but rigid and when the wind blows it does not move with the wind, but can snap or break. Stand like the willow tree in Qigong (and life), able to flow and adapt, but at the same time remaining centered and grounded. Here is a routine under the weeping willow Jeff is talking about: https://qigongforvitality.vhx.tv/videos/yin-yang-balance-35-mins