The key to understanding authenticity lies, as we have seen, in the characterization of Dasein’s being as a relation between two aspects or dimensions making up human existence. On the one hand, we find ourselves thrown into a world and a situation not of our own making, already disposed by moods and particular commitments, with a past behind us that constrains our choices. With respect to this dimension of human life, we are generally absorbed in practical affairs, taking care of business, striving to get things done as they crop up from time to time. This “being-in-a-situation” naturally inclines us to everyday falling as Heidegger describes it.