Accordingly, Heidegger writes in Basic Concepts (1941) that Being is both the emptiest and abundance, the most general but also singular (Einzige), the most comprehensible and at once concealment, both the most exhausted (Abgegriffenste) and the origin, the most abandoned but also the abyss, the most uttered and at once sigetics (Verschweigung), both the most forgotten and the commemorated, the most binding (Verzingendste) and at once the release (Befreiung).