Mao Collection, Middle Volume Radical: Door (hù) Kangxi stroke count: 8 Page 415, Entry 16 Pronounced shu (rising tone). According to the Tang Rhyme (Tangyun), the Collected Rhymes (Jiyun), and the Collection of Rhymes (Yunhui), the character is read as shu (rising tone). The Explaining Graphs and Analyzing Characters (Shuowen Jiezi) defines it as the sound of chopping wood. The structure of the character is derived from the Axe (jīn) radical, with the Door (hù) as the phonetic component. It also denotes a place or location. The Book of Odes (Shijing), Zheng Airs (Zhengfeng) records, "Presented at the lord's location." The Eulogies of Shang (Shangsong) records, "Approaching your location." According to the Institutions of the Han Dynasty (Handai Zhidu), the location where the emperor's carriage resides is called a temporary imperial residence (xíngzài suǒ). Cai Yong's Decisive Discourses (Duduan) records that because the Son of Heaven treats the entire world as his home, the location where he is present is called a temporary imperial residence (xíngzài suǒ). According to the Western Regional Dialects (Guanfang Yanyan), being single-mindedly devoted to a task is called suo. This refers to severing other interests to focus on a single source. The Book of Documents (Shangshu), Against Luxurious Ease (Wuyi) records, "The gentleman remains in his position without luxurious ease." The Announcement of Shao (Zhaogao) records, "The King reverently establishes his position." It also functions as a particle. The Analects (Lunyu) records, "Look at what he does, observe his motives." It is also used in oaths. The Analects (Lunyu) records, "That which I deny." The Commentary of Zuo (Zuozhuan), 24th Year of Duke Xi records, "Those with whom I do not share the same heart as my maternal relatives." It is also used as a pronoun for objects. The Book of Rites (Liji), Tan Gong records, "Its height is enough to provide concealment." The commentary explains this as approximately four feet high. The History of the Former Han (Qianhanshu), Biography of Shu Guang records, "Asked how much gold was still remaining." The commentary explains that "how much" (jǐ suǒ) means a certain amount. The Biography of Zhang Liang records, "The father returned after about a mile." The commentary explains that "a mile or so" (lǐ suǒ) means approximately one mile. It is also a surname. During the time of Emperor Wu of Han, there was a remonstrating official named Suo Zhong. It is also used as a rhyming word, pronounced xi. Ban Gu's Rhapsody on the Western Metropolis (Xidu Fu) records, "Encircled by palace walls, extending over four hundred miles. With thirty-six detached palaces and guest houses."