Contemplation: Four Inverted Views, 4

After reviewing the guidelines for practice, take the following as your object of contemplation:

Virtuous man, what is the sign of the person? It is that which is experienced in the minds of sentient beings. Virtuous man, he who awakens to the self no longer identifies with the self. This awakening, which is beyond all experience, is the mark of the person. Virtuous man, both what is awakened to and the awakening are not the self. Thus, even if this man's mind were perfectly awakened to nirvana, it would not be the self [because] as long as there is even the slightest trace of awakening or striving in the mind to realize the principle, it would be the sign of the person.

Sutra of Complete Enlightenment, pp. 50-51.