This text explores the ontological definition of the term "non-being" (ne-jsoucí), strictly distinguishing it from "non-existence" (ne-jsoucno). The author analyzes non-being across two fundamental temporal dimensions: that which has passed (pastness) and that which is preparing to occur (futurity). In the former case, it refers to entities that were once actually present and left behind traces or relics, while in the latter, it refers to anticipated future actualities. Both forms are characterized as "non-being beings." The text further examines the internal structure of event-like processes, differentiating between rapidly changing actual components and lower, seemingly more permanent components that move at a slower pace. The author emphasizes that even these stable elements are inherently dynamic and actively participate in the overall process through their own sub-components. Ultimately, the work provides a deeper insight into the dynamics of time and existence within the framework of process philosophy, where non-being is not a mere void but an integral part of the event-like nature of reality.