The essence of technology is in a lofty sense ambiguous. Such ambiguity points to the mystery of all revealing, i.e., of truth.
On the one hand, Enframing challenges forth into the frenziedness of ordering that blocks every view into the coming-to-pass of revealing and so radically endangers the relation to the essence of truth.
On the other hand, Enframing comes to pass for its part in the granting that lets man endure—as yet unexperienced, but perhaps more experienced in the future—that he may be the one who is needed and used for the safekeeping of the coming to presence of truth.27 Thus does the arising of the saving power appear.
The irresistibility of ordering and the restraint of the saving power draw past each other like the paths of two stars in the course of the heavens. But precisely this, their passing by, is the hidden side of their nearness.
When we look into the ambiguous essence of technology, we behold the constellation, the stellar course of the mystery.
The question concerning technology is the question concerning the constellation in which revealing and concealing, in which the coming to presence of truth, comes to pass.
But what help is it to us to look into the constellation of truth? We look into the danger and see the growth of the saving power.
Through this we are not yet saved. But we are thereupon summoned to hope in the growing light of the saving power. How can this happen? Here and now and in little things, that we may foster the saving power in its increase. This includes holding always before our eyes the extreme danger.
The coming to presence of technology threatens revealing, threatens it with the possibility that all revealing will be consumed in ordering and that everything will present itself only in the unconcealedness of standing-reserve. Human activity can never directly counter this danger. Human achievement alone can never banish it. But human reflection can ponder the fact that
27. "Safekeeping" translates the noun Wahrnis, which is unique to Heidegger. Wahrnis is closely related to the verb wahren (to watch over, to keep safe, to preserve), integrally related to Wahrheit (truth), and closely akin to währen (to endure) and gewähren (to be surety for, to grant). On the meaning of Wahrnis, see T 42, n. 9 and n. 12 above.