This text presents a philosophical analysis of the relationship between the subject and reality, examining the ontological status of the subject in comparison to that of an event. The author explores the distinctions between being and non-being, as well as reality and unreality, specifically through the lens of subjective activity. While an event is defined by its immediate presence and cannot exist without occurring, a subject attains its reality only through action, creation, or transformation. An inactive subject is viewed as being in potentiality rather than in reality, a concept that engages with Aristotelian terminology while adapting it to a dynamic context. The core argument posits that a subject is defined solely by its activity; an inactive subject ceases to be a real subject. This reflection provides insight into the dynamic nature of subjectivity, which is inextricably linked to action and the transformation of the world, contrasting it with events that are strictly bound to their temporal occurrence and lack the possibility of non-activity.