Most of it is about the religious rituals, especially the funeral which is believed that when the dead are still alive in the world. So in keeping with the corpse, and bring a dead person's values are packed as down.
Most of it is about a particular religious ritual burial. It is believed that the dead are still alive in the world as well. Thus keeping the body well. The supplies that are packed into the well of the dead.
Most of it is about religion, rituals, especially a funeral. The belief that when the dead will also live in the new world again. The treatment of the body well. The things with the value of the packing down with.