The symbol is interesting.

It looks like Sri Aurobindo's.
I am the one who designed Sri Aurobindo's, and I adapted it from this one.

Look, they made the central square very elongated. The one done here is more correct: Pavitra made all the sides equal. But the one for the Cosmic Review was elongated, with the lotus in the center.

It's the same [as the one for the Cosmic Review], only elongated so that the two triangles meet and form a square.

I am keeping this to show Pavitra, because that's what I had first tried to make. But obviously the one we have now is correct.

It was Théon who told me it was Solomon's seal.

page 454 , Mother's Agenda , volume 3 , 15th Dec. 1962