In November, from the first day to the Misoka (last day of month) was Araimi (capsule Monoimi, 'avoiding something regarding as ominous'); the three days from Ushi no hi (the day of ox), right before the U no hi on which the festival was held, were Maimi (strict Monoimi) and associating with impurities was admonished during the period.
11月になると、1日から晦日（みそか。月末）までは散斎（あらいみ。簡略な物忌。）、祭儀の行われる卯の日の前の丑（うし）の日から3日間は致斎（まいみ。厳重な物忌。）とされ、穢れに触れることを戒めた。