This FBA Dharmabyte is called 'Describing Nirvana' by Sangharakshita. Attitudes connected with goal-seeking are at the root of misunderstandings about the nature of Nirvana, which many consider to be Buddhism's 'goal'. Sangharakshita challenges us to investigate our real motives for wanting to know what Nirvana is.
The full talk, entitled simply, "Nirvana" was given in 1966: and is part of the series 'Introducing Buddhism'.