Any experience of getting inside a matter as he had with his photographs provides the basis for a fruitful ongoing engagement with it. This is true even if the initial insights are of no special value, if they could be dismantled easily by another more capacious intelligence. It is as if a certain trajectory is marked out in a space that embraces both the subject and the matter, and that this trajectory acquires a twist in returning back to itself which means that it cannot be contracted to a point, or shaken out of existence like a magician's knot. Every investigation of the matter can in this way also be taken to be an inquiry into the mind, or minds, to which that matter appears as such. The mystery of the subject which cannot be an object is projected onto the matter, and attains a degree of thematisation as the mystery  of the matter, as that in it which summons inquiry. Just as interesting, however, are all the matters which attract us but which we cannot enter into in this way because we are, or appear to be, too enlightened to be vitally engaged.