[W]hat is Nirvāṇa? Volumes have been written in reply to this quite natural and simple question; they have, more and more, only confused the issue rather than clarified it. The only reasonable reply to give to the question is that it can never be answered completely and satisfactorily in words, because human language is too poor to express the real nature of the Absolute Truth or Ultimate Reality which is Nirvāṇa. Language is created and used by masses of human beings to express things and ideas experienced by their sense organs and their mind. A supramundane experience like that of the Absolute Truth is not of such a category. Therefore there cannot be words to express that experience, just as the fish had no words in his vocabulary to express the nature of the solid land. The tortoise told his friend the fish that he (the tortoise) just returned to the lake after a walk on the land. ‘Of course’ the fish said, ‘You mean swimming.’ The tortoise tried to explain that one couldn’t swim on the land, that it was solid, and that one walked on it. But the fish insisted that there could be nothing like it, that it must be liquid like his lake, with waves, and that one must be able to dive and swim there.