The highest of the twelve senses: the organ by which one human being perceives the I of another person directly, not by inference.
The Sense of Ego in Anthroposophy is the twelfth and highest of the human senses, the faculty by which one person perceives the I, the inner self, of another human being directly. Rudolf Steiner set it out in The Riddle of Humanity (GA 170, 1916), where he insisted that meeting another I is as immediate as seeing a colour, and never a conclusion drawn from a stranger's posture, gestures, or speech. The capacity was first seeded on Old Saturn, the earliest stage of cosmic evolution, ages before the human being received an I of its own at the Earth stage. For this reason the ego sense must be held strictly apart from self-awareness: it faces outward, toward the other, not inward toward oneself. Coenraad van Houten built his Centre for Social Development on exactly this faculty of direct encounter, which makes the ego sense the silent ground of every true meeting between people.
The sense of ego, sometimes called the I-sense or ego-sense, is the perceptual organ through which we register the I of another person. Steiner placed it at the summit of his twelve senses, above even the senses of thought and word. It does not deliver our own self-feeling. It reaches across the space between two people and reads the spiritual core of the one who stands before us, the way the eye reads light.
In Steiner's Own Words
You see, it really is necessary to distinguish between the ego sense, which makes you aware of the I of another person, and the awareness of yourself. The difference is not just that in one case you are aware of your own I and, in the other, of someone else's I. The two perceptions come from different sources. The seeds of our ability to distinguish one another were sown on Old Saturn. The beginnings of this sense were implanted in us then. The basis of your being able to perceive another person as an I was established on Old Saturn. But it was not until the Earth stage of evolution that you obtained your own I; so the ego sense is not to be identified with the I that ensouls you from within.
What it Means Today
The ordinary account of how we know other people runs like this: we watch a body walking upright on two legs, a head that speaks and changes expression, and from these signs we deduce that an I must be present. Steiner called this account, in plain words, nonsense. We do not infer the other person. We perceive them, as directly as we perceive brightness through the eye. The sense of ego is the organ that does this, and naming it changes what a meeting between two people actually is.
This is where the term earns its keep in contemporary practice. Coenraad van Houten (1922 to 2013), co-founder and director from 1975 to 1993 of the Centre for Social Development at Emerson College in England, built an entire method of adult education on the premise that learning between adults happens only where one person truly perceives the other. His four-stage work, later carried forward as New Adult Learning, treats the encounter itself, not the curriculum, as the place where development occurs. Read through Steiner's twelfth sense, van Houten's social development is applied ego-sense: the deliberate strengthening of a faculty that most of modern life leaves dormant. The Thalira reading is that the sense of ego is the threshold organ of community. A group is not a sum of bodies and opinions. It becomes real only at the moment its members perceive one another as I-beings rather than as functions, and the ego sense is the instrument by which that perception is made.
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