The originary negation as perseverance of preserving wherein refusal can and even must light up without thereby gifting away its full sway.

The negation as Da-sein's inabiding the refusal. No! It "is" "not" yet and yet it "is" so in the gifting of refusal. The "no" here is not meant as defense and resistance — these are not originary — but as inabiding, and yet not just as "affirmation" as "attuning" – approval [Zu-'stimmung'] of something extant, rather attunedness to the tune of stillness.

85. 'Nothingness'

1. The metaphysical concept of 'nothingness' (Hegel — the un-determined im-mediate);
2. the be-ing-historically thought metaphysical concept of 'nothingness' — the nihilating;
3. the be-ing-historical concept of 'nothingness' — the ab-ground as the sway of be-ing.
   Here 'nothingness' loses every semblance and superficiality of what is merely of the nature of 'not' [Nicht-haftes]. For ab-ground is the swaying of refusal as the swaying of en-ownment of gifting.

*

The more superficially — the more without the knowing-awareness of the truth of being [G313] — is thought metaphysically;+ the more "nihilating" 'nothingness' becomes, the easier 'nothingness' is shoved away into the "logical" negation.

That and to what extent being and 'nothingness' are the same, namely on the basis of the swaying of the truth "of" being, can be grasped be-ing-historically.

Proposition counts for Hegel only to the extent that it empties "being" (what he calls #absolute actuality") beforehand up to what is merely thinkable for the absolute thought as it still limits itself to its utmost, respectively up to the residue of what is still represented in 'un-thought'. In its representedness, what is represented in this way is "something" in general; it is not simply nothing and yet at the same time it is nothing.

Metaphysics is capable of thinking the sameness of being and 'nothingness' only along the guiding-thread of a projecting-open that represents

- {sic}

Martin Heidegger (GA 66) Mindfulness