Nirvana is the state of being achieved after one has overcome the cycle of birth and death. In this state there is no “unpleasantness” (See dukkha below).
This is all well and good and we are happy to accept it, but it also means a state of being without all the ‘goodies’, the “pleasantness”, which so many crave, and raises the question, “How many of us are happy to – can, in fact, – be without this?”
The above reveals the realm of duality where we cannot have one without the other – there has to be non-attachment to the “unpleasant” and the “pleasant”!
Note: In the glossary of his definitive book What the Buddha Taught Walpola Rahula lists the following as meanings for dukkha: suffering, conflict, unsatisfactoriness, unsubstantiality, emptiness.