The world of the ignorant is observed as the continuation of birth and death, whereby dualisms are nourished, and because of the perversion [the truth] is not perceived. There is just one truth, which is Nirvana--it has nothing to do with intellection. The world seen as subject to discrimination resembles a plantain tree, a dream, a mirage. The Mind as norm is the abode of self-nature which has nothing to do with the realm of causation; of this norm, which is perfect existence and the highest Absolute, I speak. Of neither existence nor non-existence do I speak, but of Mind-only which has nothing to do with existence and non-existence, and which is thus free from intellection. Suchness, emptiness, Absolute Truth... these I call Mind-only.

(The Lankavatara Sutra)