 We seem to have in Dharmakīrti what would nowadays be termed a type of “causal theory of  properties.”[18]  Particulars have causal properties, that is, powers (śakti) or “fitness” (yogyatā) to produce such and such results, in that they will produce those results when the right “complete collections” (sāmagrī) of circumstances and other properties are united. And what makes any property what it is consists in the contribution it makes to the potential causal behaviour of what has it.