After the death of the ancients, why can't family members order three incense, two incense and four incense?

After the death of the ancients, why did family members light three incense sticks instead of two or four, because three sticks have special meanings, representing heaven, earth and people respectively. These three sticks are used to respect heaven and earth. Of course, the last stick is to respect people. In fact, as long as it is a multiple of three, it is ok, because the multiple of three also represents this meaning.

Everyone will die, and what people need to do at the funeral to express their special significance after death. This is handed down from generation to generation from ancient customs. The more filial people in ancient times, the more likely they are to regard the funeral of the elderly as respect and filial piety for the deceased. Thousands of years' funeral custom in China has evolved into a mature process, which usually requires a customary funeral, except for ethnic minorities, such as after the death of some relatives. If the ancient people were officials in the DPRK, if their parents died, they needed to leave the court and go home to be filial for three years, which is called "three years of filial piety". They are forbidden to approach women for three years, and it is best to be vegetarian.

Otherwise, this is an act of unfilial parents. After a person dies, it usually takes three days to be buried, and it takes three incense sticks or multiples of three to pay homage to the deceased elders. If it is not three incense sticks or multiples of three, it is impossible, because three incense sticks represent a certain meaning. In ancient times, three incense sticks were called a column, representing heaven, earth and people respectively, so the first incense stick was used to worship heaven, the second incense stick was used to worship the earth, and the third incense stick was used to respect people. As long as the number of incense is a multiple of three, you can use six or nine, but you can't use two, four or five.

Ancient times were very particular about these traditional cultures, and it was generally impossible to change them at will. Traditional things should be preserved and passed down.