This text critiques the traditional scholastic premise „operari sequitur esse,“ which posits that being precedes any form of action. The author argues that being is not a static state but an activity that every entity must continuously perform throughout its entire duration. The traditional error is identified in the prejudiced understanding of an entity as a pre-given whole and of activity as something directed solely outward. However, when an entity is viewed as an event and a process in time, it becomes clear that the performance of being is primary. The work therefore proposes the reversed thesis „esse sequitur operari“ (being follows activity). At the same time, it acknowledges that this activity does not emerge from nothing but requires the presence of a certain „germ“ of being. This ontological shift redefines entities from passive substances into dynamic performances, opening space for a new understanding of the relationship between existence and action within process-oriented thought.