The concept of Ereignis (enowning) is apt to be detected as the thread running through the transformative turn (Kehre) that marks the passage between Heidegger’s Being and Time and Contributions (Beiträge zur Philosophie). In the latter work, Ereignis is thought as the “other beginning” whose starting point, i.e. alétheia, was concealed in the “first beginning”. Since the truth of be-ing is thought as enowing, the grounding question develops as such into the relation between enowning, be-ing and being-t/here. This is considered in turn as a rhythmical movement from side to side, a swaying that brings to light the mutual need and turning of being-t/here and be-ing. The enowning is a disposing movement in which what is disposed is also enowned to the Ereignis and established as its own property. The grounding question entails the space-time problems in order to explain this triple relationship, since it shows that only an abysmal Ground, i.e. a groundless ground, is able to establish authentically the self-giving of the truth of be-ing, as it is really suitable for a t/here who knows its being enowned to and by the Ereignis.
