To put it in another way: as soon as nirvana is made an object of desire, it becomes an element of samsara. The real nirvana cannot be desired because it cannot be conceived. Thus the Lankavatara Sutra says: Again, Mahamati, what is meant by non-duality? It means that light and shade, long and short, black and white, are relative terms, Mahamati, and not independent of each other; as Nirvana and Samsara are, all things are not-two. There is no Nirvana except where is Samsara; there is no Samsara except where is Nirvana; for the condition of existence is not of a mutually exclusive character.
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