ABSTRACT
Friction and healing can be considered together. Healing is certainly a metaphor of biological provenance that has acquired metaphoric prominence since time immemorial. In the middle of the fifteenth century, roughly three hundred years before Newton formulated the so-called laws of motion, Nicholas of Cusa, the philosopher-cardinal, had pondered the phenomenon that has been known since as "rolling friction". The intervention of remote bodies into anybody's or everybody's or somebody's life has little to do with the metaphor of friction. The metaphor friction refers to souls or minds, although it is not unrelated to the relation of bodies. Friction occurs when bodies and minds (souls) are close, and when conflicts occur because of this closeness. If there is friction, both the mind (soul) and the body of the persons are involved in the friction, regardless of whether it occurs in a family or among friends, business partners, or members of the same string quartet.
