Beginners cannot understand the compass interpretation. Because Compass Insight is all-encompassing and collects the key points of the Compass, beginners cannot understand Compass Insight. The compass generally consists of a land disk and a sky disk. The compass is divided into straight needle, sewing needle and middle needle; it is divided into gold plate and silver plate; it is divided into inner plate and outer plate; it is divided into three plates: heaven, earth and man. Some Feng Shui masters use straight stitches to measure the sky, some use straight stitches to measure the dragon; some use stitches to measure the earth, and some use stitches to determine the direction of sitting.