This article presents Roman Ingarden’s theory of causation, as developed in volume III of The Controversy about the Existence of the World, and defends analternative which uses some important insights of Ingarden. It rejects Ingarden’s claim that a cause is simultaneous with its effect and that a cause necessitates its effect. It uses Ingarden’s notion of ‘inclinations’ and accepts Ingarden’s claim that an event cannot necessitate a later event.

The paper ends with an argument that says: necessarily, if there are finitely spatially extended particulars, then there are monadic universals. Before that, in order to characterize the distinction between particulars and universals, Roman Ingarden’s notions of existential moments and modes (ways) of being are presented, and a new pair of such existential moments is introduced: multiplicity–monadicity. Also, it is argued that there are not only real universals, but instances of universals (tropes) and fictional universals too.