Lo Shu Magic Square
This is the Chinese Magic Square, also known as the Lo Shu Square.  It is an anchient mathematical number grid that symbolizes the natural order of the universe.

 
Every row of numbers in this grid will add up to 15, which happens to be the number of days it takes for the new moon to become a full moon.

159 456
258 492
276 753
438 816

Created by Al Bogdan with Word Splash Pro