Gadamer waxing (Hegelian and) perichoretic (quoted in Gadamer’s Hermeneutics: A Reading of Truth and Method , p. 159): “Life is defined by the fact that what is alive differentiates itself from the world in which in which it lives and to which it is bound, and preserves itself in such self-differentiation. The self-preservation of what is alive occurs in that it takes into itself things that are outside it. The fundamental fact of being alive is assimilation. Differentiation is thus at the same time non-differentiation. The alien is appropriated.”

Knowledge too is a perichoretic exitus-reditus: The being of self-knowledge “consists in the fact that it knows how to make anything and everything the object of its knowledge, and yet in anything and everything it knows, it knows itself. As knowledge it differentiates itself from itself, and as self-consciousness it is at the same time a comprehension that unites itself with itself.”