9 6 2 ▁when ▁he ▁was ▁already ▁in ▁his ▁sevent ies . ▁He ▁became ▁known ▁through ▁the ▁book ▁The ▁Three ▁P ill ars ▁of ▁Z en , ▁published ▁in ▁ 1 9 6 5 . ▁It ▁was ▁compiled ▁by ▁Philip ▁Kap le au , ▁who ▁started ▁to ▁study ▁with ▁Y as ut ani ▁in ▁ 1 9 5 6 . ▁It ▁contains ▁a ▁short ▁bi ography ▁of ▁Y as ut ani ▁and ▁his ▁Int ro duct ory ▁ ▁L ect ures ▁on ▁Z en ▁Training . ▁The ▁lect ures ▁were ▁among ▁the ▁first ▁instructions ▁on ▁how ▁to ▁do ▁z az en ▁ever ▁published ▁in ▁English . ▁The ▁book ▁also ▁has ▁Y as ut ani ' s ▁Comment ary ▁on ▁the ▁Ko an ▁Mu ▁and ▁somewhat ▁un orth odox ▁reports ▁of ▁his ▁dok us an ▁inter views ▁with ▁Western ▁students . ▁ ▁In ▁ 1 9 7 0 ▁upon ▁his ▁ret irement ▁Y as ut ani ▁was ▁succeeded ▁as ▁Kan ch õ ▁( super int endent ) ▁of ▁the ▁San b ok y od an ▁sect ▁by ▁Yam ada ▁K õ un . ▁H aku un ▁Y as ut ani ▁died ▁on ▁ 8 ▁March ▁ 1 9 7 3 . ▁ ▁Te aching ▁style ▁The ▁San b ō ▁Ky ō dan ▁incorpor ates ▁R in za i ▁K ō an ▁study ▁as ▁well ▁as ▁much ▁of ▁S oto ▁tradition , ▁a ▁style ▁Y as ut ani ▁had ▁learned ▁from ▁his ▁teacher ▁Har ada ▁D ai un ▁S og aku . ▁ ▁Y as