Why can't craftsmen who make long-lived wood do it themselves?

Our ancestors left many customs in China for 5,000 years. These customs are our hope, which contains a spiritual belief of our ancestors. Although I don't believe it now, I still have to respect it. Craftsmen who make long-lived wood can do it for others and help protect the dead, but because of this, they can't protect themselves and can only ask other craftsmen for help.

With the implementation of the national funeral reform, the custom of burial was gradually overthrown, and the business of making "coffins" (commonly known as longevity materials) disappeared because of the withdrawal of burial. The status of craftsmen who used to be "longevity materials" is quite respected, because in people's traditional concept, longevity materials for the elderly are equivalent to the future houses of the elderly, and we must attach great importance to them.

In the past, science was underdeveloped, and some geomantic omen was particularly particular, so I was very cautious for fear that some minor disasters would affect the fate of future generations. Instead, I will let other colleagues do it for me, so I can let go of my hands and feet and have no worries. After all, two people's planning is better than one person's.

Many people are over 50 years old, and when they reach the age of knowing their destiny, they will prepare a pair of longevity trees. When they can see their immortal tree before they die, they will feel at ease. The raw materials that can be used as long-lived wood are very rich, and Chinese fir is generally chosen as the tree species. It is considered that Chinese fir is the best material for making long-lived wood. After cutting the wood, carry it home to dry naturally in the shade, and then ask a carpenter to make a coffin.

So it doesn't mean you can't do it for yourself. Considering from two aspects, one is that two people are smarter than one person and can avoid eating. Second, some superstitious ideas mentioned above may not be useful if you do them yourself in the underworld, so please ask others to do them and then refer to them yourself.