As to the fourth; he must have a true conception of what constitutes self-realization of Noble Wisdom. First, it is not comparable to the perceptions attained by the sense-mind, neither is it comparable to the cognition of the discriminating and intellectual-mind. Both of these presuppose a difference between self and not-self and the knowledge so attained is characterized by individuality and generality. Self-realization is based on identity and oneness; there is nothing to be discriminated nor predicated concerning it. But to enter into it the Bodhisattva must be free from all presuppositions and attachments to things, ideas and selfness.

(The Lankavatara Sutra)