This text provides an in-depth exploration of human experience, rejecting its reduction to mere sensory perception. The author argues that reason extends to the very limits of sensory organs and that intellectual activity itself constitutes a fundamental experience of thinking. Consequently, the notion of something existing "beyond experience" is viewed as problematic; if an object lies outside the boundaries of experience, it necessarily remains outside consciousness and thought, rendering any discussion of it meaningless. The text emphasizes the necessity of distinguishing between various types and levels of experience, particularly regarding metaphysics and religion. An appeal to metaphysical experience does not inherently validate metaphysics; just as the experience of error serves as a tool to avoid future mistakes, the long tradition of European metaphysics should prompt a critical re-evaluation. This experience should not justify continuing traditional patterns but should instead inspire the development of a new metaphysics or alternative modes of thought.