The thing as process, the mattering, or what O. calls the 'going-on'. These go on, they go, act, intervene. We only know of them through this intervention, in the world. To intervene equals to come between. The world is the plethora of comings and goings of matterings and it becomes richer as more matters arise in the gaps between established ones. So there appears to be more than one thing. There are, there must be gaps between things that matter, gaps that matter, mattering and mattering too. It seems that as much as matters come and go we also come and go in relation to certain fixed landmarks or a horizon. For a matter to become presence there must be two terms in relation, one fixed and one variable, one necessary and one contingent, but only, of course, relatively so. And conversely, when there is a relation of a constant and a variable term, or a necessary and a contingent one, then there is a presencing, some matter coming about.