Being-in-the-world is the grounding state of being. It is the fundamental ground upon which every other determination of being rests.
Being-in-the-world is the idea that self and world are not two beings, like subject and object. Rather, self and world are the unity of the structure of 'being-in-the-world'.
Being-in-the-world is a 'pre-objective perspective' that undermines the very distinctions between first person and third person perspectives.. It is the genuine intertwining between consciousness and nature which is the main way the world is encountered in us.
Being-in-the-world is engendered when man, who projects himself into the future, is in a situation where the ahead-of-itself comes back to having-been, the present.
Being-in-the-world is an argument against the cartesian notion that we are subjects encountering objects, but that it is on account of my capacities for being in the world that anything gets encountered at all.
Being-in-the-world is a unified structure that refuses seeing the self and world as two separate beings, just as the subject and object are not to be taken as two separate beings.
Being-in-the-world is the idea that the world is not something that has to be proved as if we were stuck with some internal world and can’t get out. We are, from the start, in-the-world.