  In a further hermeneutic spiral, Heidegger concludes that temporality is the a priori transcendental condition for there to be care (sense-making, intelligibility, taking-as, Dasein's own distinctive mode of Being). Moreover, it is Dasein's openness to time that ultimately allows Dasein's potential authenticity to be actualized: in authenticity, the constraints and possibilities determined by Dasein's cultural-historical past are grasped by Dasein in the present so that it may project itself into the future in a fully authentic manner, i.e., in a manner which is truest to the mine-self.