Anyone searching for consciousness research finds two camps: on one side, neuroscience, which measures neural correlates and attempts to reduce consciousness to brain activity. On the other, a blurred landscape of meditation, psychedelics, and esoteric speculation. What disappears in this division is a third possibility: the systematic investigation of expanded states of consciousness — subjective experience beyond ordinary biography — as a source of knowledge — one that proceeds neither reductionistically nor arbitrarily.
Grof’s Cartography: What the Perinatal Matrices Map
Stanislav Grof (1931–2024) spent over five decades systematically exploring the topography of human consciousness — first with psycholytic therapy, later with holotropic breathwork (Grof, 1975; 1988). What distinguishes his work from speculative philosophy of consciousness is its empirical foundation: thousands of documented sessions in which the same layers of experience appeared again and again. Grof mapped what academic psychology refused to acknowledge and what esotericism left in anecdotal imprecision.
The central finding of this research is the four basic perinatal matrices (BPM I–IV) (Grof, 1975). They correspond to the phases of biological birth and at the same time reach far beyond them. The first matrix (BPM I) maps the oceanic unity of the foetus in the womb — a state of undisturbed connectedness. The second (BPM II) describes the constriction when contractions begin but the cervix is still closed: cosmic hopelessness with no visible way out. The third (BPM III) encompasses the struggle through the birth canal — an experience that merges with mythological death-and-rebirth motifs. The fourth (BPM IV) contains the emergence into the light, the actual birth, often accompanied by experiences of divine epiphany.
The decisive point: each of these matrices opens access to domains of experience that point beyond the personal biography — qualia of cosmic scope, subjective experience that transcends individual boundaries. In Grof’s words, the perinatal level is “an important interface between the personal and the collective unconscious, or between traditional psychology and mysticism” (Grof, 1975). The layer model of consciousness revealed in this research is not psychological but ontological: the layers of experience point to layers of reality. Grof himself observed that people in expanded states of consciousness could gain access to information about “the totality of existence” that cannot be directly grasped by the human senses (Grof, 1998).
No Lapse into Irrationality
Anyone who dismisses the perinatal matrices as esoteric speculation misjudges their methodological status. Grof emphasised that the perinatal process possesses philosophical and spiritual dimensions “beyond the purely biological aspect,” without being reducible to them (Grof, 1988). He was not modelling articles of faith but mapping recurrent patterns of experience that could be reproduced under controlled conditions.
The four matrices expand the concept of knowledge without abandoning the rational foundation. The logic of experience remains verifiable: through the structures that recur, through the transitions that can be described, through the concrete effects that manifest in the life of the researcher. Consciousness research in this sense is neither neuroreductionism nor mystical rapture. It moves within an interstitial space that most academic disciplines dare not enter because their paradigm does not permit it. As Grof put it: the prevailing model of the human psyche constitutes a “conceptual straitjacket” that renders many theoretical and practical endeavours ineffective (Grof, 2000).
In this way, consciousness research takes up a fundamental problem also familiar to the philosophical tradition: the confusion of the map with the territory. The explanatory gap between neural description and lived experience — what Chalmers called the hard problem of consciousness (Chalmers, 1996) — appears here from a new angle: Whoever takes the neuroscientific map of the brain for the complete reality of consciousness commits the same error that Jochen Kirchhoff called “bad metaphysics”: a metaphysical decision that passes itself off as empirical self-evidence (J. Kirchhoff, 2007).
From Grof to Kirchhoff: The Cosmological Expansion
Jochen Kirchhoff’s natural philosophy (1944–2025) gives Grof’s empirical cartography the philosophical framework it cannot supply from within itself. Grof described the perinatal level of consciousness. Kirchhoff posed the further question of what it tells us about the nature of the cosmos that consciousness has such layers.
Kirchhoff’s fundamental thesis is: consciousness can only arise from consciousness (J. Kirchhoff, 1998). The dualism of mind and body, which generates the mind-body problem, dissolves: The cosmos is not dead matter that at some point produced consciousness, but a living whole in which spirit has inhered from the beginning. This position is rooted in Schelling’s German natural philosophy, which understood nature as “visible spirit” (Schelling, 1800). What Grof documented as transpersonal experience — identification with the formation of galaxies, experiencing pre-human stages of development, cosmic unity experiences — becomes intelligible within Kirchhoff’s natural philosophy: if the cosmos itself is conscious, then such experiences are portals to cosmic reality, not hallucinations of an overloaded nervous system.
Conversely, Grof was influenced by Kirchhoff: the cosmological expansion of transpersonal psychology — the embedding of perinatal experiences within an understanding of the living cosmos — owes itself to this philosophical dialogue. Both shared the conviction that the prevailing paradigms of science constitute a “conceptual straitjacket” that blocks access to essential dimensions of reality (Grof, 2000; J. Kirchhoff, 2007).
Birth as a Principle of Knowledge
What Gwendolin Kirchhoff develops from these two sources goes beyond synthesis. The birth process becomes a philosophical structural principle: “I see life not as a series of deaths but as a series of births. Births always follow the same pattern: at the beginning the feeling is very delicate and is protected by a dense shell. Then at some point a vital impulse sets the expulsion in motion” (G. Kirchhoff, 2024).
Behind this formulation lies a reinterpretation of the death drive: what is conventionally read as a destructive impulse is in reality the search for rebirth. Unconsciously, this drive leads to self-destruction; consciously, to the birth of the higher self. This position, shared by Gwendolin Kirchhoff and Grof, shifts the foundational assumption: the human being does not strive toward dissolution but toward transformation.
From this perspective, what is conventionally interpreted as crisis or breakdown is a birth process that wants to be accompanied. The perinatal matrices are the empirical foundation for an image of the human being that grasps the person as becoming, not as defective. Pre-birth becomes recognisable as the fundamental structure of a life that has not yet broken through into its own reality.
Whoever understands the birth process as a principle of knowledge stops trying to repair the human being and begins to accompany what is pressing to come into the world within them. A culture that possessed this understanding would be “a highly ordered birthing room — not only for the physical children but also for the inner, the spiritual, the creative children” (G. Kirchhoff, 2024).
Sources
- Chalmers, D. (1996). The Conscious Mind. Oxford: Oxford University Press.
- Grof, S. (1975). Realms of the Human Unconscious. New York: Viking Press.
- Grof, S. (1988). The Adventure of Self-Discovery. Albany: SUNY Press.
- Grof, S. (1998). The Cosmic Game. Albany: SUNY Press.
- Grof, S. (2000). Psychology of the Future. Albany: SUNY Press.
- Kirchhoff, G. (2024). “The Birth Process as a Life Principle.” Lecture.
- Kirchhoff, J. (1998). Was die Erde will. Munich: Diederichs.
- Kirchhoff, J. (2007). Räume, Dimensionen, Weltmodelle. Drachen Verlag.
- Schelling, F. W. J. (1800). System of Transcendental Idealism. Tübingen: Cotta.
Related entries: Philosophy of Consciousness | Birth Process | Pre-Birth | Layer Model | Natural Philosophy