The underlying idea of this work is a magic square, known in China as Lu Shu. In 1553, it was named Sigillum Saturni (Seal of Saturn) by the philosopher of religion Agrippa von Nettelsheim, who assigned a magic square to each planet. It is an arrangement of the numbers 1-9 in a grid such that the numbers in all rows, all columns, and both diagonals equal the same constant, which looks like a symbo…
