From now on, beings as such waver, insofar as we put them into question. The oscillation of this wavering reaches out into the most extreme and sharpest counterpossibility of beings, into not-Being and Nothing. The search for the Why now transforms itself accordingly. It does not just try to provide a present-at-hand ground for explaining what is present at hand—instead, we are now searching for a ground that is supposed to ground the dominance of beings as an overcoming of Nothing. The ground in question is now questioned as the ground of the decision for beings over against Nothing—more precisely, as the ground for the wavering of the beings that sustain us and unbind us, half in being, half not in being, which is also why we cannot wholly belong to any thing, not even to ourselves; yet Dasein is in each case mine.
[The qualification “in each case mine” signifies: Dasein is thrown to me so that my self may be Dasein. But Dasein means: care of the Being of beings as such that is ecstatically disclosed in care, not only of human Being. Dasein is “in each case mine”; this means neither that it is posited by me, nor that it is confined to an isolated ego. Dasein is itself by virtue of its essential connection to Being as such. This is what the oft-repeated sentence in Being and Time means: the understanding of Being belongs to Dasein.]
Thus, it is already becoming clearer that this “instead of nothing?” is no superfluous addition to the real question. Instead, this turn of phrase is an essential component of the whole interrogative sentence, which as a whole expresses a completely different question from what is meant by the question: Why are there beings? With our question we establish ourselves among beings in such a way that they forfeit their self-evidence as beings.