The Central Line

Sit upright, the back tall but not stiff. Place attention on the spine, from the base of the seat all the way up to the crown of the head. Sense it as a single steady line down the middle of the body, the still pole around which everything else turns. Breath moves around this line, thoughts move around this line, but the line itself is calm. Stay with it for several minutes. The whole body, in fact the whole day, holds itself together more easily once this central line is felt clearly.