Yin Collection, Upper Volume Radical: Roof (bù) 寅; Kangxi stroke count: 11; Page 288, Entry 05 According to Tang Rhymes (Tangyun), pronounced yin. According to Collected Rhymes (Jiyun) and Rhyme Collection (Yunhui), pronounced yin. In the Explaining Graphs and Analyzing Characters (Shuowen), it is stated: Yin refers to the growth of things. It was originally written as a variant form (variant form). Xu says: It signifies the expulsion of cold. In the first lunar month, the yang energy rises and pushes through the roof. The element representing the mortar is the place, depicted as a pictograph. It is now written as Yin, which is the earthly branch of the east. Another source calls it the first month (Mengzou). In the History of the Former Han (Qianhan Shu), specifically the Treatise on Harmonics and Calendars (Lüli Zhi), it is noted as the expansion and reaching of energy toward Yin. In the Literary Expositor (Erya), specifically the Explaining Heaven (Shitian) chapter, it is said: When the Grand Duke Jupiter (Taisui) is in Yin, it is called Shetiger. Also, in the Jade Chapters (Yupian), it means to develop, to respect, and to be strong. In the Book of Documents (Shujing), specifically the Canon of Yao (Yaodian), it states: Respectfully welcome the rising sun. The commentary explains: Yin means to respect; welcome with ceremonial rites. The rising sun refers to the sun just emerging. This likely refers to the mornings of spring and autumn, where one welcomes the rising sun and observes its first rays. Also, in the Canon of Shun (Shundian): You are to serve as the Minister of Religion; from dawn until dusk, be respectful. The commentary explains: This means from early morning until night, be respectful and thoughtful in fulfilling your duties. Also, in the Counsels of Gao Yao (Gaoyao Mo): Work together with respect and harmony. The commentary explains: This means to share the same respectful awe and coordinate such reverence, so that the common standards and things may each obtain their proper order. Also, in the Broad Rhymes (Guangyun), pronounced yi. According to Collected Rhymes (Jiyun), Rhyme Collection (Yunhui), and Correct Rhymes (Zhengyun), pronounced yi. The meaning is the same. Note: In the Explaining Graphs and Analyzing Characters (Shuowen), Yin is defined as the growth of things, while the entry under the Sunset radical (Xi bu) defines it as respectful and cautious. Today, various texts use the character Yin to encompass the meanings of both respect and caution. The characters Yin and the variant form (yin) were likely interchangeable in ancient times.