, ▁is ▁attributed ▁to ▁him . ▁This ▁work ▁emphas izes ▁the ▁practice ▁of ▁" m aint aining ▁the ▁original ▁true ▁mind " ▁that ▁" n atur ally ▁cut s ▁off ▁the ▁ar ising ▁of ▁del usion ." ▁ ▁Split ▁in ▁Northern ▁and ▁Southern ▁School ▁Origin ally ▁Sh en xi u ▁was ▁considered ▁to ▁be ▁the ▁" S ix th ▁Patri arch ", ▁carrying ▁the ▁mant le ▁of ▁Bod h id har ma ' s ▁Z en ▁through ▁the ▁East ▁Mountain ▁School . ▁ ▁After ▁the ▁death ▁of ▁Sh en xi u , ▁his ▁student ▁Sh en hui ▁started ▁a ▁campaign ▁to ▁establish ▁Hu in eng ▁as ▁the ▁Six th ▁An c est or . ▁Event ually ▁Sh en hui ' s ▁position ▁won ▁the ▁day , ▁and ▁Hu in eng ▁was ▁recognized ▁as ▁the ▁Six th ▁Patri arch . ▁ ▁The ▁successful ▁prom ul g ation ▁of ▁Sh en hui ' s ▁views ▁led ▁to ▁Sh en xi u ' s ▁branch ▁being ▁widely ▁referred ▁to ▁by ▁others ▁as ▁the ▁" N or thern ▁School ." ▁ ▁This ▁nom en cl ature ▁has ▁continued ▁in ▁western ▁scholar ship , ▁which ▁for ▁the ▁most ▁part ▁has ▁largely ▁viewed ▁Chinese ▁Z en ▁through ▁the ▁l ens ▁of ▁southern ▁Chan . ▁ ▁Northern ▁and ▁Southern ▁School ▁( 南 <0xE9> <0xA0> <0x93> 北 <0xE6> <0xBC> <0xB8> ) ▁The ▁terms ▁Northern ▁and ▁Southern ▁have ▁little ▁to ▁do ▁with ▁ge ography : ▁ ▁The ▁basic ▁difference ▁is ▁between ▁approaches . ▁Sh en hui ▁character ised ▁the ▁Northern ▁School ▁as