() is a genre of hemerological texts that circulated widely in China from the late Warring States Period to the Western Han dynasty. This term finds its first evident presence dated back to 217 BCE in China.
Historical significance China
In Mainland China, the () "Day Book" is one of the pieces of literature discovered in late Warring States period tomb libraries which has confirmed the description of Yubu as a series of three steps. It has great cultural significance in ancient and medieval China. It is an almanac or hemerology which is one of the Shuihudi Qin bamboo texts recovered in 1975 in Shuihudi, Hubei, from a tomb dated 217 BCE. Donald Harper believes that for describing texts like the , which determine lucky and unlucky days on sexagenary cycle numerology without reference to astrology, "hemerology" is a more accurate translation than "almanac" (typically meaning an annual publication for a single calendar year).(Harper 1999:843)
The Steps of Yu The has one occurrence of (, "'Steps of Yu, three times"), and one of (, "Steps of Yu, three exertions"). This is consistent with the descriptions of in terms of "three steps" and (, "nine footprints/traces,") where each "step" was composed of three separate steps. Andersen notes that the term was later used synonymously with .(Andersen 1989:17)
Yu is closely associated with travel in the .(Harper 1999:872) The section titled "Promptuary/Instant of Yu" begins by listing the stem and branch sexagenary cycle in five groups of twelve signs each, and gives, for the days in each group, a certain lucky time of day to safely begin a journey. This section concludes with a ritual to be performed before going out of the city gate.
Isabelle Robinet says this text lets us reconstruct the connection between "exorcistic practices intended to ward off harmful demons, and therapeutic practices intended to ensure good hygiene and good physical balance", in other words, "the evolution of exorcism toward medicine, a shift from conceiving sickness as caused by demons to seeing sickness as the result of an imbalance".(Robinet 1997:39)
Contemporary world significance
The Japanese calendar designates some days of the year with special names to mark the change in the season. The 24 () are days that divide the solar year into twenty four equal sections. is a collective term for the seasonal days other than the 24 . days are made from dividing the 24 of a year further by three. Out of these special names, , , and are quite frequently used in everyday life in Japan. Of the 24 , () is the 13th solar term which signifies the beginning of autumn season.
See also Bugang, a Daoist ritual dance based upon the limping Yubu Cantong qi Paidushko horo, a Balkan "limping dance" Yu the Great, Xia dynasty king and founder
References
Andersen, Poul (1989), "The Practice of Bugang", Cahiers d'Extrême-Asie 5:15-53. Granet, Marcel (1925), "Remarques sur le Taoïsme Ancien", Asia Major 2:146–151. Harper, Donald (1999), "Warring States Natural Philosophy and Occult Thought", in The Cambridge History of Ancient China, ed. by Michael Loewe and Edward L. Shaughnessy, Cambridge University Press, 813–884. Robinet, Isabelle (1997), Taoism: Growth of a Religion, tr. by Phyllis Brooks, Stanford University Press.