How to arrange the time for the third anniversary of the joint burial of mother and father?

How to arrange the time for the third anniversary of the joint burial of mother and father? You should find a teacher to choose a good day. Don't stop to bury the hearse along the way. Send someone to open your mother's grave in advance and prepare an eye mask for burial, usually black. There must be a coffin, and there are some pieces of iron and grains in the tomb. There are oil lamps and bundles of burning paper. Put the coffin in the tomb and cover it with some new plastic sheets to avoid leaking rain. Served five courses. 3-5 kinds of fruits, 15 steamed stuffed bun, a bundle of incense. It's better to have a live rooster to tell the time.