Schürmann: Dasein that is originary

In Being and Time, it is indeed Dasein that is originary. "The ontological site" of phenomena is determined there by their "originary rootedness" in existence. Because it is systematically linked to the transcendentalism of the existential analytic, fundamental ontology cannot produce what Heidegger   later calls a "multivocal" concept of being. A fundamental ontology conceived in view of the existential analytic cannot but trace everything that appears back to man, for whom it appears. The origin is man understood as "that entity for which . . . , in its being, that being itself is at issue." And in what way is being an issue for man? "The meaning of Dasein is temporality." Being is the issue as always ahead of the project which man is, always before him, still to come and to be grasped. The ecstases are rooted in this to-come. ’The essence of temporality is the process of temporalizing in the unity of the ecstases." More precisely, "the having-been arises from the future, and in such a way that the future which has been (or better, which unfolds as having been) releases the present from itself. This unitary phenomenon of a future that unfolds as having been and as rendering itself present is what we call temporality." Being is the issue for man, temporally. In this projective and ecstatic issue, phenomena have their origin. (p. 56)