This philosophical text explores the complex relationship between the subject and reality, defining the subject as any 'true being' or internally unified 'true event.' Such an event possesses a finite spatiotemporal dimension, characterized by a specific beginning, an end, and a more or less permeable spatial barrier. The author argues that a true event must actively create and constantly reshape its own subject to achieve self-identity and manifest as a genuine event. A fundamental interdependence is established between the two: a subject possesses no existence without its corresponding event, just as a true event cannot occur without its subject. The text distinguishes authentic happening from 'pseudo-happening,' which lacks internal meaning (logos) and purposeful activity. Consequently, true reality is not a mere mechanical rearrangement of elements but is fundamentally grounded in a specific deed or action performed by a subject. This analysis provides a profound ontological insight into the nature of event-based existence and the constitutive role of subjective activity in establishing the meaning of being.