The form of the interplay, and its matter, are EACH to determine the other.
The interplay, as we lately recalled, differs from the activity it presuppose, in that we abstract from this activity . . .
The mutual intrusion of each upon the other is the FORM; the activity and passivity that at once emerges in both, through intrusion and being intruded upon, is the MATTER of the interplay.
The activity, as synthetic unity, is an absolute transition; the interplay, an absolute and completely self-determined intrusion.