Really know what? Jack-s**t?
Why don't you know that what the Buddha said about Nirvana; that it is both The Unconditioned and The Absolute, is true? Because you have never experienced either in your stagnant, backwater tradition of Hinayanist Theravada, the very tradition that the quote in question came from.
I have never claimed to have attained Nirvana, or implied it, so your childish attempt at point-scoring is as usual ineffectual. And as I have explained previously, I have practised in all the main Buddhist schools over a long period of time, not just Theravada, and now have a very simple Zen-like practice. Your petty sectarianism is even more ridiculous because you are a new-age Chopra-clone, not a Buddhist.
It's very revealing that like your bendy chum you continually imply superior knowledge, but get nasty and hurl insults when your pretentious waffle is exposed for the nonsense that it is. Delusions of grandeur perhaps? Certainly a very large ego.
Let's deal with the Nirvana question again. All you have done is quote-mined a dodgy translation because you want to claim that Nirvana is the same as Brahman, not because it is true, but because your bizarre DIY religion depends on it. But this is just plain wrong, yet another example of the way you deliberately misrepresent things.
In the sutttas Nibbana is defined as the cessation of craving, aversion and delusion, in other words the cessation of unskillful mental states. It is certainly NOT an absolute like Atman/Brahman.
In the Mahayana Nirvana follows insight into sunyata ( emptiness ), and the Heart Sutra makes it clear that Nirvana too is empty, ie it is NOT an absolute.
So I have AGAIN demonstrated that you quote-mined a dodgy translation, you will I am sure IGNORE this again because you are are so attached to your bizarre DIY religion.
You are just a tiresome Chopra clone who hijacks threads to preach a bizarre DIY religion.
I'll say it again in blue, in case that's the only colour you understand:
You are just a tiresome Chopra clone who hijacks threads to preach a bizarre DIY religion.