Reflection is a complex mental act that directs attention toward previously executed actions or prior reflections. This text examines the historical development of reflective thought, beginning with the ancient Greek invention of conceptual frameworks and the focus on intentional objects. The author highlights that rules of thinking were discovered early on and could not be interpreted as mere objects, which led Aristotle to categorize logic separately from core philosophy. Through philosophical reflection, it is possible to trace thought back to its origins, fundamental principles, and underlying assumptions. However, the document warns against a narrow interpretation that limits reflection solely to logical or cognitive principles. It argues that the foundations of logical thinking represent only one specific case among broader life orientations and existential starting points. Ultimately, the text calls for a deeper understanding of reflection not as an isolated cognitive act, but as a means to uncover the multifaceted foundations of human action and existence that transcend formal logic.