This text explores the phenomenon of intention and intentionality as a specific act or performance of a subject. The author emphasizes that intention is not merely a property but a realized relationship that does not contain the intended object (intentum) within itself, even though it cannot occur without it. The objective is to define the essential characteristics of intention broadly, ensuring they are not limited to human thought or mental processes but also encompass lower forms of existence. Unlike signs or symbols, which require external interpretation and function based on convention, an intentional act is self-sufficient and establishes its relationship to the intentum through its very execution. Intention is therefore never "empty"; it represents an active outreach of the subject toward something that remains outside the performance itself, even when dealing with non-objective realities. The text thus provides an ontological grounding for intentionality as a creative act that transcends mere representation and establishes a concrete bond between the subject and the world.