He also made a base of San-lun (Three Shastras) Teachings by establishing Tonanin Temple in Todai-ji Temple, which should not be overlooked by the two following viewpoints; Shobo's high evaluation of Chugan (Intermediate) or Hannya-ku (the truth that nothing is substantial, void, taught in the Heart Sutra) and Kukai's adjusting ceremonies to Shingon Esoteric Buddhism at major temples at Nanto.
一方で東大寺に東南院を建立して三論教学の拠点を築いたが、これは聖宝の中観／般若空重視の態度という観点からだけではなく、宗祖空海によって実施された南都大寺における儀礼の真言密教化という観点からも見落とすべきではない。