བདག་གིས་བདག་རང་ལ་འང་མ་ཡིན་ནོ། །
“When one is following a particular course of action and thoughts of desire arise, one should properly investigate the arising of this state of desire to see whether it is visual perception that is the source of this mental event. One should properly investigate whether the desire is located in the eye, reflecting, ‘If my desires were located in the eye, how could the eye be observing the eye? Can an essence perceive its own essence? How could that be? [MS.79.b] There would then be that eye and this eye. That eye would be related to the element, and this eye would be the production of the element. In the context of the production of elements, a real essence cannot desire a real essence, or its own being. Why is this? If that is just the same as this, there is no difference between desiring that and desiring this. All immature ordinary people fail to make this distinction. I, however, wish to be someone who sees distinctions. Why do I wish this? I wish this because someone who wishes for desires is without good qualities.’ ”
Perfection of Wisdom, Non-entity, Emancipation