注大乘入楞伽經 7.106

7.106

言妄想心鏡中現於境界，無實故不得說二，愚夫不知故見有二，若了唯心，能取所取妄想不生。

This means that the mirror of the discriminating mind manifests external objects; because they are without reality, one cannot speak of two. Fools do not know this and therefore see there to be two; if one comprehends mind-alone, false discrimination of grasper and grasped does not arise.