Introduction to Yan Xishan's living room: Behind the main hall of the Third Courtyard of the East Garden, there is a relatively secret small courtyard, which is also where Yan Xishan often works. Every time he comes back from outside by car, he can park the car in the driveway behind without passing through the courtyard outside. People can come in from the side door and directly enter the main room of this small courtyard to rest. If someone asks to see him, he does not need to go outside. Instead, he can go along the golden corridor of the small courtyard to the main hall in front (i.e. Dangrentang), where he can receive guests and work.