here, gives rise 92 I. Johansson I Pattern as an Ontological Category to a four-dimensional spatiotemporal shape. 2. A spatiotemporal property pattern contains a lot of property-grounded relations, but it is not identical with a set or an aggregate of such relations; the instantiations of these relations can he hoth .1patially and temporally scattered. 3. A spatiotemporal property pattern contains a lot of both spatial and temporal relations, hut it is not identical with a set or an aggregate of such relations. 4. A spatiotemporal property pattern contains a specific kind of spatial unity and a specific kind of temporal unity. Comment: The spatial unity is the same as earlier described. Time, however, has not the same kind of unity, since it is only "the now" which exists. Since this paper is not a paper in the philosophy of time, I will rest content with two remarks. (i) Temporal unity is not a really existing unity: in one sense it is an imagined and fiat unity, but in another sense it is not an imagined unity since the imagined events have had existence. (ii) When we represent time as a spatial line, our representation of time inherits the kind of unity which space has. This means, among other things, that, as spatial patterns are necessarily "one-piece and no-hole" areas or volumes, (spatio)temporal patterns cannot possibly have temporal holes. If, to take an example, a square during t 1 tot, changes shape into a circle, next, from t, to t1 remains a circle, and from t1 to t4 changes -into an ellipse, then the non-change be-tween t2 and t, becomes part of the temporal pattern, too. If this non-change is not regarded as part of the pattern, then we would have one pattern between 11 and t2, and another pattern between t1 and t4 . The first pattern can not be connected with the last pattern into one single pattern without bringing in also what happens during 12 to t 1• Therefore, I regard time as unitycreating in about the same way as container space is unity-creating. 5. The t_vpe-identity of' a spatiotelll/}