Okou - Okou

…For example, in the Shingon sect, on the anniversary of the death of the founder Kakuban, they hold debates and discuss the teachings. The Hoonko that has been the most popular among the people since ancient times is the one held in the Shinshu sect, and is generally called "Oko", "Oshichi-ya", or "Shouki". This is the sect's largest annual event, and every year at the head temple, it is held for seven days and nights from November 21st to the 28th of the same month, which is the anniversary of the death of the founder Shinran (in the Honganji and Takada sects, it is from January 9th to January 16th according to the solar calendar), and at each branch temple, a lecture is held for several days at roughly the same time as the head temple, to praise the virtues of the founder. …

*Some of the terminology explanations that mention "Oko" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…たとえば新義真言宗では祖師覚鑁（かくばん）の忌日に論議を行い法門を談じる。報恩講の中で古くから最も民衆に親しまれてきたのは真宗で行われているもので，一般には〈お講〉〈お七夜〉〈ご正忌（しようき）〉などとよばれている。これはこの宗門にとって最大の年中行事で，毎年本山では11月21日から宗祖親鸞の忌日にあたる同月28日(本願寺派，高田派では太陽暦により1月9日から同月16日)まで7昼夜にわたって，また各末寺では本山とほぼ同じ時期に数日間法座を開いて宗祖の遺徳を讃嘆する。…

※「お講」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報