The reason to recommend mediation with avoiding to teach by characters and words is that not only it believes strongly the historical events of telepathy in Seson nenge, Kasho bisho (when Buddha held up a the flower on his deathbed, only Mahakassapa smiled among his disciples by knowing what he meant), but also it preaches that it prevents the accomplishment of Buddhism to seek Buddha in sutras and others with forgetting the fact that Buddha exists in the inner bottom of oneself.
文字や言葉で教えることを避けて坐禅を勧める理由として、世尊拈華、迦葉微笑における以心伝心の故事を深く信奉しているという以外にも、自分の内奥が仏であることを忘れて経典や他人の中に仏を捜しまわることがかえって仏道成就の妨げになるからであると説く。