The specific usage is: adjust the two red lines of the compass to the positive pressure position, that is, the positive pressure is 0 degrees, 90 degrees, 180 degrees and 270 degrees, and wrap the compass with red cloth. If the compass has infrared packaging, don't wrap it in red cloth, just use infrared packaging. In the place where the gods and ancestors are worshipped, Zi Zi is facing the gods or gods (no matter