As the saying goes, "if you have a good family, you will have more." As long as you walk straight and sit straight, your ancestors will feel gratified in the world.
Or, in the traditional way, "Customs Tong Yi" says: "Zhou Li" is square. On the day of burial, he went into the cave to drive away elephants, which was like eating the liver and brain of the dead. People can't always let Fang stand on the side, but they are afraid of tigers and cypresses, so they stand in front of the grave. "That is to say, monsters like elephants often eat the brains of the dead underground, but this monster is afraid of cypresses and tigers, so people planted cypresses on graves, set up Shi Hu and drove the elephants away. This is the original intention of planting pines and cypresses all over the grave. There is also a saying that in Qin Mugong, when Mr. Chen digs the ground and finds something like a sheep, he will give it to the second boy and say,' What's the name? (yūn), often eating brains in the ground. If you kill him, hit him on the head with two cypress branches. "As you can see, although the records are slightly different, most of them are legends of conifers and cypresses to prevent the bones of the dead from being swallowed by evil spirits. In fact, the ancient people's ideas are relatively restrictive. If they were cremated at sea like this, there would be no worries about bones.
These stresses are not so strict now. It is best and most important to respect your ancestors and feel at ease.