"Three Disks and Three Needles" in a Compass
1, the venue-used in the vertical direction-put a "compass or compass" on the Tai Chi point to measure all directions.
Points in the house; The crypt is in the center of the tomb.
2. People's plates-used for sand removal-look at peaks, buildings, trees, walls, piles, towers, chimneys, etc.
3, the sky plate-used to receive water-look at the coming and going of water or the direction of the road. Such as water, rivers, ponds, wells and toilets.
(turbid water) fish farming (flowing water), doors and windows (flowing water), roads or flat land (empty or fake water), etc.