The topic of this paper concerns the nature of existential awareness, a topic which Heidegger has not developed with explicit thoroughness in his own philosophy. In this light, I should note at the beginning that at its best Heidegger's thought is not designed to encourage its own repetition. He has not attempted to create a school of philosophers who canonize his "teachings' or make a "system' out of what he has said, and by his own accounting he has not been concerned to discover a body of stated truths which disciples carefully repeat. My interest in this discussion is not to articulate what might be considered Heidegger's "doctrine' of consciousness.