Gaotang is a term for parents in ancient society. In ancient families, the parents' living room was generally called the main room, which was located in the middle of the family. The floor and roof of the main room were relatively higher than other rooms. Therefore, in order to respect their parents, the ancient children were not straightforward in front of outsiders. When talking about parents, they are called "Gaotang". Therefore, Gaotang is used to refer to the parents' residence, or to refer to parents.