Steiner's name for where soul life happens: thinking, feeling, and willing arise not inside the four members of the human being but in the intervals between them.
The Spaces Between the Members in Anthroposophy is Rudolf Steiner's name for the intervals in which the life of the soul actually takes place: thinking between the physical body and the etheric body, feeling between the etheric body and the astral body, and willing between the astral body and the I. Steiner developed the account in Cosmosophy, Volume I (GA 207), in the lecture of 30 September 1921 at Dornach, as a result of Imaginative cognition applied to the moments of waking and falling asleep. He concedes that the spatial word is figurative: the spaces are really the living interactions among the four members, not gaps that could be measured. The teaching answers a standing problem of psychology, where soul life is located, by refusing to house it in any single member. Relational accounts of consciousness in contemporary phenomenology, such as Thomas Fuchs at Heidelberg, work the same ground.
The Spaces Between the Members names one of the most surprising moves in Steiner's late anthropology. Ordinary psychology hunts for the soul inside something: a brain, a body, a self. In the Cosmosophy lectures of 1921 Steiner reverses the search. The four members of the human being, physical, etheric, astral, and I, are not containers of soul life; thinking, feeling, and willing flow in the meetings between them.
In Steiner's Own Words
We can therefore say that we divide the human being into physical body, etheric body or body of formative forces, astral body, and I. Between the physical body and the etheric body thinking takes place in the soul element. Between the etheric body and the astral body feeling takes place in the soul element, and between the astral body and the I, willing takes place in the soul element. When we come to the periphery of the physical body we have sense perception.
What it Means Today
The nearest contemporary neighbour to this teaching works a few hundred kilometres north of Dornach. Thomas Fuchs, holder of the Karl Jaspers Professorship for Philosophy and Psychiatry at Heidelberg University, has argued for two decades that the brain is an organ of relation, not a container of mind. His Ecology of the Brain: The Phenomenology and Biology of the Embodied Mind (Oxford University Press, 2018) states the position plainly: consciousness is not manufactured inside the skull, it is enacted in the circular interplay of brain, organism, and environment, and the hunt for a storage site of the psyche is a category error. Fuchs writes as a phenomenologist and practising psychiatrist and does not cite Steiner, which makes the structural agreement more striking. Both answer the question of where soul life resides by dissolving the where: what looks like a thing turns out to be a set of living relations between systems that only abstraction treats as separate.
Thalira synthesis: Steiner's intervals go one step beyond the ecological brain because they are differentiated; thinking, feeling, and willing each claim their own between, which is why a person can be lucid in thought yet unfree in will, a condition no single-organ account of mind can state. The practice Steiner attaches to the teaching is concrete: cultivate presence of mind, Geistesgegenwart, at the moment of waking, when the interval between etheric body and physical body opens briefly and can be observed rather than merely lived through.
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