The residual duty continues after every collective duty of a higher order has been abandoned. The residual man continues to fulfill the permanent obligation even though the age offers no confirming structure and no shared enforcement. The duty itself remains intact. Only the collective conditions that once made it visible have disappeared.
Young men who still sense an obligation of rank often look for residual institutions or residual groups that will define the duty for them. Most of those groups have already adjusted the obligation until it no longer differs from the horizontal demands of the age. The residual path does not wait for external definition. It continues to fulfill the permanent duty from the interior center that still perceives its authority.
This solitary fulfillment is the residual form of the older traditional duty that once ordered both the individual and the higher functions of a civilization. The man who keeps the duty present already performs the residual act. That act does not require a collective horizon to remain real.
Fulfill the residual duty. Do not wait for the age to restore conditions in which higher obligations are publicly enforced. The residual act is to keep the permanent criterion effective in every concrete decision. That effectiveness is the continuity of the higher type under residual conditions.