First, it is restricted by five elements.
For example, A and B blades are made of wood. If they are hit by pubic hair blades, you can use or wear some red colors, fire or electronic ornaments to vent excessive wood gas, or you can use or wear a small amount of gold, silver and white colors and gold or metal ornaments to restrain excessive wood gas.
Second, it is restricted by Feng Shui.
If you hit a wooden sheep blade, you shouldn't live in a room due east, nor should you sleep with your head facing east. Instead, you should live in a room facing south, with your head facing south or head facing south.