The concern of all of Heidegger's later works is the preparation of the possibility of another beginning of creative human Being — "another" beginning as compared to the one which was brought about by the poetic philosophizing of the Presocratics. The necessity of such a new beginning follows for Heidegger from his insight into the "highest danger," which lies in the essence ruling in technology. This ruling essence threatens to bring about a state of affairs in which man merely labors to produce "materials"* in a totally uncreative way and conceives of himself as nothing but material. The arrival of "another" beginning would be, in Hölderlin's words, the arrival of "das Rettende" — that which would bring about a saving. "Das Rettende" would consist in creative dwelling which, again in Hölderlin's words, would be a "poetic" dwelling: man would "… dwell poetically on this earth."