He gained enormous economic strength by the production of gold dust, trade with China and so on and established a realm of peace and prosperity in the northern land as in construction of Muryokoin Temple which exceeded Uji Byodoin Temple in Kyoto in scale.
砂金の産出や中国との貿易等により莫大な経済力を蓄え、京都の宇治平等院を凌ぐ規模の無量光院跡を建立するなど、北方の地に王道楽土を現出させている。