items in a quad that share a horizontal relationship
In any given quad, the two top items share a relationship between them in the same way the bottom two share a relationship. What separates the two pairs is what dramatic focus they create. Each pair in each quad will be focused in a slightly different place, creating a gradual shift in the model from one point of view to its opposite. In many quads, the top pair will appear to be more oriented toward the environment in comparison to the bottom pair which is more oriented toward the mind. Either the top or bottom pair can be referred to as a Companion Pair, meaning that the two items that make up the pair are companion rather than in conflict.