This text explores the philosophical definitions of actuality and the subject within the framework of event ontology. The author specifies actuality as the "hic et nunc" presence that serves as the dividing line between the past and the future. Actuality is defined as the locus where future entities enter into being and subsequently transition into the past. Central to this discussion is the subject, which is viewed not as a passive point but as an active, performing center essential for the occurrence of any complex event. The subject acts as the topos through which non-being passes into being and immediately returns to non-being as the past. By integrating past and future potentials into the unity of a true event, the subject ensures ontological coherence. This "hic et nunc" actuality is described as the seat of the subject. The text emphasizes the dynamic nature of existence, highlighting the subject's role in the continuous process of actualizing reality and maintaining the continuity of events.