Oumon

…It is usually a large panel made of planks attached to a latticework wooden frame, separate from the main building, that is attached to the left and right side walls of the hall and reaches almost to the ceiling. In the center, there is an opening called the “Beautiful Gate (Olea Pili)” or “Royal Gate” with a hanging curtain (parapetasma) and a waist-high door (sometimes there are three gates in total, with smaller openings on the left and right). The priest enters and leaves through this gate to perform ceremonies that connect the sacred world (Holy of Holies) with the earthly world (the pews). …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…建物の本体とは別に，格子組みの木枠に板を張って作った大型のパネル状のものが普通で，幅は堂内の左右の側壁に接し，高さは天井近くにまで達する。中央に，垂幕(パラペタスマ)と腰高の扉をもつ〈美しの門(オレア･ピリ)〉もしくは〈王門〉と呼ばれる開口部を備える(さらに左右に小規模の開口部を配し，合わせて三つの門をもつ場合もある)。この門を出入りしながら司祭が執り行う儀礼によって，聖なる世界(至聖所)と現世(会衆席)とが結ばれる。…

※「王門」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