Years ago I was gifted a copper number square by a Sufi mystic. I have puzzled over its significance for all these years and still haven't been able to find a suitable answer. The number square is a 3x3 grid of values as follows:
$$\begin{array}{|c|c|c|} \hline 4&9&6\\\hline 5&3&1\\\hline 18&16&11\\\hline \end{array} $$
All the values add up to the prime number 73. The Sufi mystic who gifted this to me frequently practiced numerology. The answer may lie there - so I suggest reading up on the mathematics of numerology if you are unfamiliar with it.
I appreciate any assistance that you may be able to give me!