From Critchleys series part 3
Being and Time, part 3: Being-in-the-world | Simon Critchley | Comment is free | theguardian.com
"the human being is really being-in-the-world, then this entails that the world itself is part of the fundamental constitution of what it means to be human. That is to say, I am not a free-floating self or ego facing a world of objects that stands over against me. Rather, for Heidegger, I am my world. The world is part and parcel of my being, of the fabric of my existence. We might capture the sense of Heidegger's thought here by thinking of Dasein not as a subject distinct from a world of objects, but as an experience of openedness where my being and that of the world are not distinguished for the most part. I am completely fascinated and absorbed by my world, not cut off from it in some sort of "mind" or what Heidegger calls "the cabinet of consciousness".
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"Heidegger insists that this lived experience of the world is missed or overlooked by scientific inquiry or indeed through a standard philosophy of mind, which presupposes a dualistic distinction between mind and reality. What is required is a phenomenology of our lived experience of the world that tries to be true to what shows itself first and foremost in our experience. To translate this into another idiom, we might say that Heidegger is inverting the usual distinction between theory and practice. My primary encounter with the world is not theoretical; it is not the experience of some spectator gazing out at a world stripped of value. Rather, I first apprehend the world practically as a world of things which are useful and handy and which are imbued with human significance and value. The theoretical or scientific vision of things that find in a thinker like Descartes is founded on a practical insight that is fascinated and concerned with things."
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"Heidegger introduces a distinction between two ways of approaching the world: the present-at-hand (Vorhandenheit) and the ready-to-hand (Zuhandenheit). Present-at-hand refers to our theoretical apprehension of a world made up of objects. It is the conception of the world from which science begins. The ready-to-hand describes our practical relation to things that are handy or useful. Heidegger's basic claim is that practice precedes theory, and that the ready-to-hand is prior to the present-at-hand. The problem with most philosophy after Descartes is that it conceives of the world theoretically and thus imagines, like Descartes, that I can doubt the existence of the external world and even the reality of the persons that fill it – who knows, they might be robots! For Heidegger, by contrast, who we are as human beings is inextricably bound up and bound together with the complex web of social practices that make up my world. The world is part of who I am. For Heidegger, to cut oneself off from the world, like Descartes, is to miss the point entirely: the fabric of our openedness to the world is one piece. And that piece should not be cut up. Furthermore, the world is not simply full of handy, familiar meaningful things. It is also full of persons. If I am fundamentally with my world, then that world is a common world that experienced together with others. This is what Heidegger calls "being-with" (Mitsein)."