When developing structural (relational) understanding, it is good not to put too many things in the same bag, creating a kind of nebulous cloud.
Better to avoid to put things out of context, like politics, or too close but not at the same level, like mind. In this picture we have carefully avoided to put any "subject", "agent", "hermeneut".
Two is too few, but more than five can be too much complicated. Three is a good number.
HERE a study we have developed relating POSSIBILITY, IMAGINATION and CONCEPTUALIZATION.