When I practice my embrace the tree stance each morning I find there is a tendency to rise up slightly from the posture, especially when I’m nearing the end of my workout.
When this occurs I focus my Chi sinking vertically into the ground, starting from my Tan Tien, coccyx (tail bone), knees, bubbling wells in the soles of my feet and into the earth.
I co-ordinate this visualisation process as I slowly exhale.
This technique helps me to stay in the correct posture for the duration of the workout.