菩薩從兜術天降神母胎說廣普經 3.9

3.9

The Buddha told Kāśyapa: "This matter is not so. Why? This consciousness is neither external, nor internal, nor in the middle between the two. The dwelling place of consciousness is not the dwelling place of consciousness. External ideation and external sensation are precisely internal dharmas, not external dharmas. When a bodhisattva-mahāsattva faithfully understands the profound dharmas of internal, external, and the middle, only then can he comprehend the dwelling place of consciousness—that this is a sentient being, this is not a sentient being, up to existing and non-existing dharmas being neither this nor that—whereupon he enters the unimpeded, solitary-stride samādhi."