▁ ▁The ▁Un ification ▁of ▁Chan ▁practice ▁with ▁accept ance ▁of ▁the ▁Buddh ist ▁pre cept s , ▁ ▁The ▁un ification ▁of ▁the ▁teach ings ▁of ▁the ▁La ṅ k ā vat ā ra ▁S ū tra ▁with ▁those ▁of ▁the ▁Mah ap raj nap aram ita ▁S ut ras , ▁which ▁includes ▁the ▁well - known ▁Heart ▁S ut ra ▁and ▁Diam ond ▁S ut ra , ▁ ▁The ▁incorpor ation ▁of ▁chant ing , ▁including ▁chant ing ▁the ▁name ▁of ▁Bud d ha , ▁into ▁Chan ▁practice . ▁ ▁Fif th ▁Patri arch ▁Hong ren ▁( 五 <0xE7> <0xA5> <0x96> 弘 <0xE5> <0xBF> <0x8D> ) ▁Hong ren ▁was ▁a ▁plain ▁med itation ▁teacher , ▁who ▁taught ▁students ▁of ▁" vari ous ▁religious ▁interests ", ▁including ▁" p ract ition ers ▁of ▁the ▁Lot us ▁S ut ra , ▁students ▁of ▁Mad hy am aka ▁philosophy , ▁or ▁special ists ▁in ▁the ▁mon astic ▁reg ulations ▁of ▁Buddh ist ▁Vin aya ". ▁ ▁Following ▁Da ox in , ▁Hong ren ▁included ▁an ▁emphas is ▁on ▁the ▁Mah ap raj nap aram ita ▁S ut ras , ▁including ▁the ▁Heart ▁S ut ra ▁and ▁the ▁Diam ond ▁S ut ra , ▁along ▁with ▁the ▁emphas is ▁on ▁the ▁La ṅ k ā vat ā ra ▁S ū tra . ▁ ▁Though ▁Hong ren ▁was ▁known ▁for ▁not ▁compiling ▁writ ings ▁and ▁for ▁teaching ▁Z en ▁principles ▁or ally , ▁the ▁classical ▁Chan ▁text ▁Disc ourse ▁on ▁the ▁High est ▁Ve h icle