Three phases of magic square of three
The magic square of three was first used to facilitate child birth. Next most ailmants could be cured. Jabir exploited it to facilitate changing base metals into gold.
Then it becomes the symbol of cosmogony. Finally it is shown to be a symbol of Heaven and Earth, reduced as symbols to square with even numbers and to a cross with odd numbers.
Indian Journal of History of Science, Vol. 25 No. 1-4, (1990).