The coffin symbolizes officials and wealth. In fact, in ancient times, people liked to use the homonym of coffins, meaning promotion and wealth.
In the past, my daughter's dowry was a coffin, which meant that a girl would be respected by her husband's family without spending a penny when she entered the door. If there are elderly people at home, they will also prepare coffins, put them in the wing and paint them with paint, which means longevity.