It is customary to think that "the first seven" refers to the seventh day after death. Family members should prepare a meal for the deceased, and then they must avoid it. The best way is to sleep. If you can't sleep, you should hide under the bed.

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Burn May 7th, a ceremony related to the funeral. Thirty-five days after death, burning paper in front of the grave of the deceased is a way to commemorate the deceased.

The traditional way of burning May 7th in the north: The date of May 7th was announced by the venerable old man in charge of funeral in the village. On May 7th, relatives and friends made their own sacrifices without notice. On this day, the family got up early to prepare a banquet, waiting for the arrival of relatives and friends.

When relatives and friends want to give gifts, it is important that the son-in-law buy rice on the Liang table. After all the people gathered, they put on the mourning clothes they wore at the funeral and picked all the gifts received by their families to the grave. Family members lined up crying and went to the grave to worship. The sons, daughters and daughters-in-law scattered a few handfuls of earth around the grave, saying that they would let the deceased rest in peace and offer the sacrifices after returning home.

Extended data:

May 7th, also known as "fasting seven", "managing seven", "burning seven", "walking seven", "walking one day" and "July 7th". The old funeral customs of the Han nationality are very popular all over the country. That is, after death (or after the funeral), a coffin seat is set up from the "first seven days" for the wood owner to cry and worship every day, and sacrifice in the morning and evening. Buddhist ceremonies were held every seven days, and fasting ceremonies were held, which ended on the 49th day of July 7th.

References:

Part 7-Baidu Encyclopedia 57- Baidu Encyclopedia