Why Is The World Round?

Question: Why are the planets and the stars round and not in the shape of a square or a triangle?

Answer: They are not totally round but close to being round because the whole universe aspires to roundness as it is an ideal mathematical and physical form in which we observe a balance between all the attributes.

On the whole, a physical form doesn’t necessarily have to be circular because its shape can be other properties.

Nature, which is the whole structure of Adam (Man), that is, a system that resembles the Creator (“Adam” in Hebrew is from the word “Domeh” – to resemble, the Creator), is in itself an absolutely perfect sphere because only in that case is the balance between all the forces revealed in our world, in our coordinates.
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From the Kabbalah Lesson in Russian 8/14/16