When he was sixteen he moved again, to Denshinji, under the guidance of Bokusan Nishiari, a former leader of the Soto-sect, whom he later criticized for what he perceived as a lack of insight.
At age sixteen, the subject moved to Denshinji and began training under Bokusan Nishiari, a former leader of the Soto-sect, whom he later criticized for his perceived lack of wisdom.