What do you mean by black and red?

The words used in folk geomantic omen originally mean negative energy bodies or things that can cause harm to life, especially people, among which evil spirits are the majority. Because normal people are masculine according to the concept of yin and yang, which is opposite to the feminine of the dead, once they are contaminated with negative energy or things, the masculine will be neutralized, so that people will get sick, and once the masculine disappears completely, people will die. Therefore, touching unclean things, such as ghosts, is generally called hitting evil spirits. A person who kills too much will appear "suffocating" because he is contaminated with too much dead air.

"Black" is a bad omen. The ancients said marriage, funeral and marriage. Red evil spirit means widowhood.

Both black and red belong to the category of black. Black refers to the dead, which is common among the dead. Because the dead are black, they are called "black". The "red evil spirit" is the evil spirit possessed by the bones of years or demons. It is an evolutionary version of black, which is extremely harmful and relatively rare.

Extended data:

nominal

(1) refers to superstitious devils and the like.

To avoid evil spirits in new mourning, Hubei customs are the strictest. -Wang Tonggui's ear speaks.

Another example: fierce; Evil spirits; Consumption (referring to evil spirits); Evil star (human evil); Evil spirits (evil spirits)

(2) Soul, soul

For example, the return of evil spirits (the old saying goes that a few days after a person dies, the soul returns to his hometown, and the evil spirits follow, which is called "the return of evil spirits")

Adverbial nature

Very very

That light, reflected from the air on the blue sea ... looks good. -A midsummer night by the sea

Another example: solid (indeed; Efforts); Really (really, very); Hard to bear; Evil time (at this moment, a short time); Shame (dialect. At the end; Finally); Less than (far less than); Yes (there is indeed a set); Black (all black); cudgel one's brains

References:

Baidu Encyclopedia-Sha