What does it mean to wear black clothes for three or five miles on this trip?

This sentence is based on geomantic metaphysics. You can understand its meaning in this way: when you go out for three or five miles, black clothes are divided into good luck and bad luck. Black, China has always said that the sky is black and the ground is yellow. Black represents the supreme and boundless sky. This unknown and profound universal consciousness formed Tian Xuan's thought. Yin and yang refer to the main transport or evil. The source is an auspicious day in the zodiac: I am a visitor to the sages. This trip is three or five miles, and the yin and yang in black are different.