Consciousness as Co-Fundamental with Matter: Reflection, Structure, and the Experiential Threshold Between Living & Non-Living

This paper develops a structured dual-aspect ontology beginning from the reflexive self-disclosure of consciousness. Consciousness is uniquely capable of revealing itself through reflection, yet reflection does not generate consciousness; rather, it makes explicit what is pre-reflectively present. Building on phenomenological insights and contemporary philosophy of mind, the paper argues that consciousness cannot be reduced to purely physical processes without leaving an explanatory gap. Instead of endorsing substance dualism or reductive materialism, the paper proposes that consciousness and matter are co-fundamental aspects of a single ontological ground. However, this position does not entail strong panpsychism. While material reality may contain proto-structural conditions compatible with consciousness, unified lived experience emerges only when organization achieves sufficient complexity characteristic of living systems. The central thesis is that the decisive distinction between living and non-living entities is experiential actuality. Both share material composition, but only living systems instantiate unified interior perspective. Thus, the difference between a stone and a human being is not ontological substance but the presence or absence of lived experience. This framework integrates phenomenology, dual-aspect monism, and contemporary debates surrounding the hard problem of consciousness. It avoids reductionism, strict dualism, and unqualified panpsychism, offering instead a threshold model of experiential emergence grounded in structural organization.