One of the interesting things about the Buddhist teachings is that they are built upon so rational a foundation of elegant logic, and for this reason lend themselves readily to systematic application.  A while ago, Dr. Barbara Wright took advantage of this aspect of the religion to come up with something akin to a board game, creating a “map” of the principles of metta that allowed the “player” to actually experience, through bodily movement, the effects of its practice on inner—and interpersonal—relationships. An earlier book by Dr. Wright with Stephen Long, Metta: The Map, the Formula,the Equations (2009)  described this map and its various uses.