Heidegger’s project in Being and Time does not itself escape completely the problematic of transcendental reflection. The idea of fundamental ontology and its foundation in Dasein, which is concerned “with being” and the analysis of Dasein, at first seemed simply to mark a new dimension within transcendental phenomenology. But under the title of a hermeneutics of facticity, Heidegger objected to Husserl’s eidetic phenomenology that a hermeneutic phenomenology must contain also the theory of facticity, which is not in itself an eidos, Husserl’s phenomenology which consistently holds to the central idea of proto-I cannot be accepted without reservation in interpretation theory in particular that this eidos belong only to the eidetic sphere of universal essences. Phenomenology should be based ontologically on the facticity of the Dasein, and this existence cannot be derived from anything else.
Nevertheless, Heidegger’s complete reversal of reflection and its redirection of it toward “Being”, i.e, the turn or kehre, still is not so much an alteration of his point of view as the indirect result of his critique of Husserl’s concept of transcendental reflection, which had not yet become fully effective in Being and Time. Gadamer, however, would incorporate Husserl’s ideal of an eidetic ontology somewhat “alongside” transcendental constitutional research. Here, the philosophical justification lies ultimately in the completion of the transcendental reduction, which can come only at a higher level of direct access of the individual to the object. Thus there is a question of how our awareness of essences remains subordinated to transcendental phenomenology, but this does not rule out the possibility of turning transcendental phenomenology into an essence-oriented mundane science.
Heidegger does not follow Husserl from eidetic to transcendental phenomenology, but stays with the interpretation of phenomena in relation to their essences. As ‘hermeneutic’, his phenomenology still proceeds from a given Dasein in order to determine the meaning of existence, but now it takes the form of a fundamental ontology. By his careful discussion of the etymology of the words “phenomenon” and “Logos” he shows that “phenomenology” must be taken as letting that which shows itself be seen from itself, and in the very way in it which shows itself from itself. The more genuinely a methodological concept is worked out and the more comprehensively it determines the principles on which a science is to be conducted, the more deeply and primordially it is rooted in terms of the things themselves; whereas if understanding is restricted to the things themselves only so far as they correspond to those judgments considered “first in themselves”, then the things themselves cannot be addressed beyond particular judgements regarding events.
The doctrine of the thing-in-itself entails the possibility of a continuous transition from one aspect of a thing to another, which alone makes possible a unified matrix of experience. Husserl’s idea of the thing-in-itself, as Gadamer introduces it, must be understood in terms of the hermeneutic progress of our knowledge. In other words, in the hermeneutical context the maxim to the thing itself signifies to the text itself. Phenomenology here means grasping the text in such a way that every interpretation about the text must be considered first as directly exhibiting the text and then as demonstrating it with regard to other texts.
Heidegger called this “descriptive phenomenology” which is fundamentally tautological. He explains that phenomenon in Greek first signifies that which looks like something, or secondly that which is semblant or a semblance (das scheinbare, der Schein). He sees both these expressions as structurally interconnected, and having nothing to do with what is called an “appearance” or mere “appearance”. Based on the ordinary conception of phenomenon, the definition of “appearance” as referring to can be regarded also as characterizing the phenomenological concern for the text in itself and for itself. Only through referring to the text in itself can we have a real phenomenology based on appearance. This theory, however, requires a broad meaning of appearance including what does the referring as well as the noumenon.
Heidegger explains that what does the referring must show itself in itself. Further, the appearance “of something” does not mean showing-itself, but that the thing itself announces itself through something which does show itself. Thus, Heidegger urges that what appears does not show itself and anything which fails to show itself can never seem. On the other hand, while appearing is never a showing-itself in the sense of phenomenon, it is preconditioned by something showing-itself (through which the thing announces itself). This showing itself is not appearing itself, but makes the appearing possible. Appearing then is an announcing-itself (das sich-melden) through something that shows itself.
Also, a phenomenon cannot be represented by the word “appearance” if it alludes to that wherein something appears without itself being an appearance. That wherein something appears means that wherein something announces itself without showing itself, in other words without being itself an “appearance” (appearance signifying the showing itself which belongs essentially to that “wherein” something announces itself). Based upon this argument, phenomena are never appearances. This, however, does not deny the fact that every appearance is dependent on phenomena.