Gadamer and Vatican II on Restoration

What occurs in the intellect and in the resultant event during the task of restoring something? H.G. Gadamer's phenomenological analysis of the event of coming to understanding provides a few pertinent remarks concerning the nature of restoration, especially in Truth and Method. This analysis is juxtaposed with the Vatican II emphasis of aggioramento (updating) and ressourcement (recovery) to propose a possible description of "what is the case" when attempting the restoration of Christianity.