Then, Saigyo points out that "The Book of Mencius," which advocated Ekisei Revolution, wasn't introduced to Japan, and cites a passage from 'Shoga (aristocracy)' in "Sikyo" (Chinese Poetry Book), Brothers conflict in house, but prevent downgrading outward,' succeeding in getting the truth out of In that it was from personal spite.
次に、西行は、易姓革命を唱えた『孟子』が日本に伝わらなかったこと、『詩経』「小雅」の一篇「兄弟牆（うち）に鬩（せめ）ぐとも外の侮りを禦（ふせ）げよ」という一節を説き、ついに院の、私怨がゆえである、との本音を引き出すことに成功する。