Although master Eison advocated the propagation to the people, he knew he was not good with it and focused on the relief on "Hinin" who was thought to be the most unrelieved presence for Buddhism at that time, handing off that role to Ninsho.
師の叡尊は民衆への布教を唱えながら、自分には不得手であることを自覚して当時の仏教において一番救われない存在と考えられていた非人救済に専念し、その役割を忍性に託した。