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The Rudolf Steiner Archive

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14 March 2026

๐“๐ก๐ž ๐ฐ๐จ๐ซ๐ฅ๐ ๐ข๐ฌ ๐š๐ง ๐ฎ๐ง๐Ÿ๐จ๐ฅ๐๐ข๐ง๐  ๐จ๐Ÿ ๐œ๐จ๐ฌ๐ฆ๐ข๐œ ๐Ÿ๐จ๐ซ๐œ๐ž๐ฌ. "Thus every spiral arises through the number ฯ€, which expresses the ratio of [circumference to diameter] or the infinitely small deviation from the circular line to the straight line. A spiral is therefore the line that arises from the diameter emerging from the circle.

The number ฯ€ expresses the ratio of the diameter to the circumference. According to the numbers of his ratio, it can now also emerge from the circle, since all development arises from the fact that a force expresses itself in this ratio according to the number 3.1415.

If a force remained closed in itself, no revelation would be possible. To reveal oneself means to unlock oneself. Every closed force can only unlock itself through this ratio of its diameter to its perimeter. The circumference circumscribes the entire force, while the diameter divides the entire force into two halves. The force that divides the whole into two halves is not fully contained within it; it is related to it in the same way as the number ฯ€. The effect of the dividing, revealing force thus emerges according to the numbers 3.1415."

Rudolf Steiner, 27 September 1906, Landin.