  As Dasein, I ineluctably find myself in a world that matters to me in some way or another. This is what Heidegger calls thrownness (Geworfenheit), a having-been-thrown into the world. ‘Disposedness’ is Kisiel's (2002) translation of Befindlichkeit, a term rendered somewhat infelicitously by Macquarrie and Robinson as ‘state-of-mind’. Disposedness is the receptiveness (the just finding things mattering to one) of Dasein, which explains why Richardson (1963) renders Befindlichkeit as ‘already-having-found-oneself-there-ness’. To make things less abstract, we can note that disposedness is the a priori transcendental condition for, and thus shows up pre-ontologically in, the everyday phenomenon of mood (Stimmung). According to Heidegger's analysis, I am always in some mood or other. Thus say I'm depressed, such that the world opens up (is disclosed) to me as a sombre and gloomy place. I might be able to shift myself out of that mood, but only to enter a different one, say euphoria or lethargy, a mood that will open up the world to me in a different way. As one might expect, Heidegger argues that moods are not inner subjective colourings laid over an objectively given world (which at root is why ‘state-of-mind’ is a potentially misleading translation of Befindlichkeit, given that this term names the underlying a priori condition for moods). For Heidegger, moods (and disposedness) are aspects of what it means to be in a world at all, not subjective additions to that in-ness. Here it is worth noting that some aspects of our ordinary linguistic usage reflect this anti-subjectivist reading. Thus we talk of being in a mood rather than a mood being in us, and we have no problem making sense of the idea of public moods (e.g., the mood of a crowd). In noting these features of moods we must be careful, however. It would be a mistake to conclude from them that moods are external, rather than internal, states. A mood “comes neither from ‘outside’ nor from ‘inside’, but arises out of Being-in-the-world, as a way of such being” (Being and Time 29: 176). Nevertheless, the idea that moods have a social character does point us towards a striking implication of Heidegger's overall framework: with Being-in-the-world identified previously as a kind of cultural co-embeddedness, it follows that the repertoire of world-disclosing moods in which I might find myself will itself be culturally conditioned. (For recent philosophical work that builds, in part, on Heidegger's treatment of moods, in order to identify and understand certain affective phenomena—dubbed ‘existential feelings’—that help us to understand various forms of psychiatric illness, see Ratcliffe 2008.) 