大乘入道次第開決 1.168

1.168

然因我法二空所顯等者。謂真如理乃是勝智所行境義。故名勝義。非是我法二執境義。故要我法二執空處。方顯真如勝義。既因我法二執無性所顯故。從能顯二空為名。名為無性。若爾應言無性勝義。何故乃言勝義無性。答。勝義既因無性所顯。勝義即無我法二性。是故得名勝義無性。

Regarding 'Yet because it is revealed by the two emptinesses of self and phenomena,' etc.: This means that the principle of tathatā is the objective sphere traversed by supreme wisdom; hence it is called ultimate. It is not the objective sphere of the two graspings at self and phenomena; therefore, only where the two graspings at self and phenomena are empty is the ultimate truth of tathatā revealed. Since it is revealed by the lack of nature of the two graspings at self and phenomena, it takes its name from the two emptinesses that reveal it, and is called 'non-nature'. If so, one should say 'non-nature ultimate'; why then say 'ultimate non-nature'? Answer: Since the ultimate is revealed through non-nature, the ultimate is devoid of the two natures of self and phenomena; therefore it can be called 'ultimate non-nature'.