“Threeness is the triangle of created space, and fourness brings the path of development in time. This twoness: threeness in relation to fourness, that is the foundation of the whole of anthroposophy. All other connections, those of sevenness and twelveness, arise from the combination of threeness and fourness. The square of time connects itself with the triangle of created space”
– An excerpt from “Eye of the Needle” by B. Lievegoed

The Working of the Planets
in the Life Processes in Man and Earth

Dr. B Lievegoed – 1951

“In every living organism Physical, Ethereal, Astral and Spiritual forces are active.

In the plant, the threefold Physical and the fourfold Ethereal forces, work from within outwards, the Astral forces work around it, and the Spiritual forces from the starry distance, where the archetypes of the plants are formed.

The effects of the Etheric Formative Forces are always general ones. Never does an organism come into existence merely through the Ethereal processes, but only when an Astral principle presses its seal upon the Ethereal.

The working of the Astral principle is carried into this Physical-Ethereal, as a streaming, moving activity. Manifesting archetypally in a sevenfoldness.

The Spiritually working principles gather together the form into a specific species and are archetypally arranged according to the 12 principles, revealing themselves cosmically in the Zodiac. It is only through this spiritual element that ‘the plant’ becomes a rose or a sage, ‘the animal’, a lion, and ‘man a definite individuality.

In the plant the seed is the carrier, or point of attachment, of the Spiritual forces which form the species. But the seed only unfolds when surrounded by Physical, Ethereal and Astral elements in such a way that these forces can stream freely together.”

I found the above quotation through this link on Glen Atkinson’s Biodynamic Chemistry site, which also has a beautiful illustration providing examples of what in a way could be referred to as “numberness” – an expression of the quality of numbers as they are expressesd in physical reality: https://garudabd.org/wp-content/uploads/Bernie-and-Glen-10.pdf

Below are a few summarizing images of the contents of Lievegoed’s brief text:
The Working of the Planets in the Life Processes in Man and Earth