Lo Shu Grid is a square shaped design which consists of 9 numbers from 1 to 9 with 3 rows and 3 columns. Total of each row and each column sums to 15. It is considered as Sacred Square. Lo Shu Grid was discovered around 4000 years ago in China. It is a combination of Chinese Numerology and Feng Shui. The intrinsic patterns of the base chart, together with the way the numbers move about the grid, are believed to offer clues on the characteristics and outcomes of vents within the environment. And also used in the interpretation of individual birth charts.