仁王護國般若波羅蜜多經疏 2.391

2.391

解曰：言第一者，勝無等故。言無二者，如智不異故。言非相者，不同色像故。非無相者，不同兔角故。無自無他者，所現應化勝劣有殊，與法性身無自他故。無來無去者，化現應物示有去來，體常不動，無來去故。從此第三結如虛空。

The commentary explains: The word 'primary' means superior and unequalled. The word 'non-dual' means that suchness and cognition are not distinct. The phrase 'neither having marks' means not identical with visible forms. 'Nor lacking marks' means not identical with a rabbit's horns. 'Without self and without other' means: the manifested responsive and transformative bodies differ as superior and inferior, yet with the dharmatā-kāya there is neither self nor other. 'Without coming and without going' means: manifesting to respond to beings, they show coming and going, yet their essence is eternally motionless, without coming or going. From here, the third part concludes that it is like empty space.