Unity of mind and body is impossible unless you practice love’s absolute values, where you give yourself for the sake of others completely. Please discard self-centeredness. It is the root of fallen nature.
Source
P. 1519, par. 2
Remark
On the one hand, it is expressed that mind-body unity cannot be achieved without the power of love. On the other hand, it becomes clear what devotion to others lies in true love and the original mind. Finally, a reference to fallen nature.