XYZ

When I began drawing the mandalas, however, I saw that everything, all the paths I had been following, all the steps I had taken, were leading back to a single point – namely, to the mid-point.  It became increasingly plain to me that the mandala is the center.  It is the exponent of all paths.  It is the path to the center, to individuation.

… During those years, between 1918 and 1920, I began to understand that the goal of psychic development is the self.  There is no linear evolution; there is only a circumambulation of the self.  

… Uniform development exists, at most, only at the beginning; later, everything points toward the center.  This insight gave me stability, and gradually my inner peace returned.  I knew that in finding the mandala as an expression of the self I had attained what was for me the ultimate.  Perhaps someone else knows more, but not I.   MDR 197

Physical Balance - The centre of gravity is the point in our torso from which all of our mass is evenly distributed (typically just below the navel), to maintain balance we must keep that centre of gravity precisely positioned above what is called our base of support. 

The “immovable” is the concentration of energy at a given focus, as at the axis of a wheel, instead of dispersal in scattered activities.