Sanxi Hall is the Yangxin Hall where Gan Long studies. In the 11th year of Qianlong (A.D. 1746), there were Wang Xizhi's Quick Snow Clear Post, Wang Xianzhi's Mid-Autumn Post and Wang Xun's Yuan Bo Post. In the 15th year of Qianlong (A.D. 1750), "Sanxi Hall" also collected the works of 134 famous artists since the Jin Dynasty, including 340 pieces of ink and 495 kinds of rubbings.
Sanxi Hall: hall of mental cultivation West Nuan Pavilion of the Palace Museum, formerly known as Nuan House, was later renamed Sanxi Hall. It is the study of Emperor Tommy Tam of the Qing Dynasty, and it is also the most obvious symbol left by him as a master of hall of mental cultivation. The plaque of "Sanxi Hall" and the ink of "Sanxi Hall Ji" inscribed by Emperor Qianlong are still hanging on the wall, and the couplets on both sides of the plaque are "Embrace ancient and modern times; Deep down, I trust Su Hao "(here Su Hao refers to calligraphy). In addition, there is a "Sanxi Hall" in the National Palace Museum in Taipei, which contains a "Clear Snow Post". Sanxi Hall began in Qianlong period, and has never changed after Jiaqing, Daoguang, Xianfeng, Tongzhi, Guangxu, Xuan Tong and other dynasties, and still maintains its original appearance.