Unity in wills cannot be unless there is one will dominating and ruling all the rest to oneness... wills of mortals have need of a directive principle... therefore for the well-being of the world, there should be a monarchy.
You use force, you create fear. Fear destroys trust. Trust is the basis of harmony. The hardliner believes harmony and unity can be brought by force. That's totally unscientific, totally wrong.
Consequently, heretics and schismatics, separated from the unity of this Body, are able to receive the same Sacrament, but with no benefit to themselves; indeed, more to their own harm, in that they are judged the more severely rather than being liberated.
In order to live a fully human life we require not only control of our bodies (though control is a prerequisite); we must touch the unity and resonance of our physicality, our bond with the natural order, the corporeal grounds of our intelligence.
Moller, in his Essay on Architecture, taught that the building which was fitted accurately to answer its end would turn out to be beautiful, though beauty had not been intended. I find the like unity in human structures rather virulent and pervasive.
...man is an analogist, and studies relations in all objects. He is placed in the center of beings, and a ray of relation passes from every other being to him. And neither can man be understood without these objects, nor these objects without man.