The recent study by Chuzo MACHIDA, 'The Background of the Establishment of the Nanpo-roku (the Secret Book of Rikyu) and the Birth of the Rikyu Myth' (reported in "No.9 of Chanoyu Bunka-Gaku (The Study of the Culture of Tea Ceremony), 2004), pursues the possibility that the term 'Wakei Seijaku' should be attributed to Daishin Gito (1657 - 1730), the 273rd chief priest of Daitoku-ji Temple.
近年の町田忠三氏の研究「『南方録』成立背景と利休虚像の誕生」（『茶の湯文化学』9号所収／2004）では、「和敬清寂」という言葉を作ったのが大徳寺273世の大心義統（1657－1730）であるという可能性を検討している。