Wu Collection, Lower Volume Radical: Cave (xué) 穾; Kangxi strokes: 9; Page 863, Entry 17 Pronounced jiao. Same as the character meaning deep. It also refers to a hidden or dark place. According to the Explaining Names (Shiming), the character means deep and secluded. In the Upper Forest Rhapsody (Shanglin Fu) by Sima Xiangru, it is used to describe deep caves and chambers. It also refers to an inner room. In the Elegies of Chu (Chuci), specifically the Summoning of the Soul (Zhaohun) section, it mentions deep inner chambers. The commentary notes that it refers to an inner room. Also pronounced yao. It refers to the sound of a door pivot turning, and also to the southeast corner of a room. Also pronounced yao. It refers to the sound of a hollow space deep within. In the Book of Zhuangzi (Zhuangzi), specifically the Discourse on Making All Things Equal (Qiwulun) section, it appears in reference to various sounds. Textual research: In the original text, the reference to the Rhapsody of Sir Fantasy (Zixu Fu) by Sima Xiangru has been corrected to the Upper Forest Rhapsody (Shanglin Fu).