Because they are like last night's dream, you must know that samsara and nirvana never arise and never disappear, never come and never go. What is realized is without anything to be gained or anything to be lost, without anything to be grasped or anything to be rejected. One who realizes has nothing to do and nothing to refrain from doing, nothing to let be as it is and nothing to get rid of. Within this realization there is no one who realizes and nothing that is realized. After all, there is no realization and no realizer, for the nature of all dharmas is universality and indestructibility.

-The Sutra of Perfect Enlightenment