Play word 一汁三菜 一汁三菜 いちじゅうさんさい meal consisting of soup, rice and three dishes (esp. namasu, nimono and yakimono)
Play word 一宿一飯 一宿一飯 いっしゅくいっぱん (being beholden to someone for a favor of) a night's lodging and a meal
Play word 一乗 一乗 いちじょう ekayana (doctrine that only one teaching, usu. the Lotus Sutra, can lead to enlightenment)
Play word 一心三観 一心三観 いっしんさんがん simultaneous contemplation of the threefold truth (form of Tendai meditation)