Sogi, a Renga poet in late Muromachi period used expressions of "appearance that is magnificent, Yugen and Ushin" in his book "Azuma Mondo"(East Country Dialogues) and "Yugen and magnificent" in "Chorokumon", which is considered as his ideal in Renga.
室町時代後期の連歌師宗祇は、著書『吾妻問答』の中で「長高く幽玄有心なる姿」、『長六文』の中で「幽玄にたけたかく」という表現を用いており、宗祇の連歌における理想を示すものと考えられている。