The Boundary is requisite to conflict — spatial boundaries are evident in every finite conflict.
A Boundary is, in political geography, an imaginary line between two nations, separating the imaginary rights of one from the imaginary rights of the other.
A Boundary is a divider, real or imagined, designed to enforce civility. See "failure".
Direction is everything — it is not so much where we stand that matters, as in what direction we are moving.
13 concepts in this pillow book.