You Collection, Lower Volume
Radical: Walk (chuò)
Character: Tong
Kangxi Stroke Count: 13
Page 1255, Entry 19
Pronounced dong (falling tone).
In the Tang Rhyme (Tangyun) and Collected Rhymes (Jiyun), it is defined as passing through.
In the Records of the Grand Historian (Shiji), Biography of Physician Cang, it states: He diagnosed his pulse as tong wind. The commentary explains: This means the wind passes through and penetrates the five viscera.
Also, per the Jade Chapters (Yupian), pronounced tong (level tone).
Defined as to reach.
In the Model for Governance (Taixuanjing) by Yang Zi, it states: The center alone is reached, tong-tong and unyielding. The commentary explains: The center is uniquely reached, thus it is pervasive without end.
Textual Research:
In the Model for Governance (Taixuanjing) by Yang Zi, the entry reads: The center alone is reached, tong-tong and unyielding. The commentary reads: The center is tong-reached, thus it is pervasive without end. I have corrected the text to read tong-reached instead of center-reached in accordance with the original commentary.