405 II. 4
Being and Time

The awaiting of the "towards-which" is neither a considering of the 'goal' nor an expectation of the impendent finishing of the work to be produced. It has by no means the character of getting something thematically into one's grasp. Neither does the retaining of that which has an involvement signify holding it fast thematically. Manipulative dealings no more relate themselves merely to that in which we let something be involved, than they do to what is involved itself. Letting something be [354] involved is constituted rather in the unity of a retention which awaits, and it is constituted in such a manner, indeed, that the making-present which arises from this, makes possible the characteristic absorption of concern in its equipmental world. When one is wholly devoted to something and 'really' busies oneself with it, one does not do so just alongside the work itself, or alongside the tool, or alongside both of them 'together'. The unity of the relations in which concern circumspectively 'operates', has been established already by letting-things-be-involved—which is based upon temporality.

A specific kind of forgetting is essential for the temporality that is constitutive for letting something be involved. The Self must forget itself if, lost in the world of equipment, it is to be able 'actually' to go to work and manipulate something. But all the same, inasmuch as an awaiting always leads the way in the unity of the temporalizing of concern, concernful Dasein's own potentiality-for-Being has, as we shall show, been given a position in care.1

The making-present which awaits and retains, is constitutive for that familiarity in accordance with which Dasein, as Being-with-one-another, 'knows its way about' [sich "auskennt"] in its public environment. Letting things be involved is something which we understand existentially as a letting-them-'be' [ein "Sein"-lassen]. On such a basis circumspection can encounter the ready-to-hand as that entity which it is. Hence we can further elucidate the temporality of concern by giving heed to those modes of circumspectively letting something be encountered which we have characterized abovexviii as "conspicuousness", "obtrusiveness", and "obstinacy". Thematical perception of Things is precisely not the way equipment ready-to-hand is encountered in its 'true "in-itself"'; it is encountered rather in the inconspicuousness of what we can come across 'obviously' and 'Objectively'. But if there is something conspicuous in the totality of such entities, this implies that the equipmental totality as such is obtruding itself along with it. What sort of existential structure must belong to letting things be involved, if such a procedure can let something be encountered as conspicuous? This question is now aimed

1 '... in die Sorge gestellt.'

Being and Time (M&R) by Martin Heidegger