Kabbalah and Hasidism

Consider the following quote from Moynam Chomsky:

“Since no one has been able to show me what I am missing, we are left with the second possibility: I simply cannot understand. I am quite willing to assume that it may be true, although I fear that I will have to be suspicious for reasons that seem good to me. There are many things I do not understand – for example, the recent debates over whether neutrinos have mass or the way in which Fermat's Last Theorem was (apparently) recently proven. But from 50 years of playing this game I have learned two things: 1) I can ask friends working in these fields to explain to me at a level I can understand, and they can do so, without much difficulty; 2) If I want to, I can continue to learn more, so that I can understand. And here, Derrida, Lacan, Lyotard, Kristeva, and their ilk – even Foucault, whom I knew and liked and who was a bit different from the others – write things I don’t understand, but (1) and (2) don’t hold: no one who claims to understand [their words] can explain them to me and I have no idea how to continue to overcome my failures. That leaves two possibilities: a) some new development has been achieved in intellectual life, perhaps through a sudden genetic mutation, which has created a kind of “theory” that goes beyond quantum theory, topology, etc.; or b) well, I won’t name the child after him.

If from your familiarity with the writings of Rabbi Nachman you know that he is not just a mind-bender and if other incomprehensible places can be explained by studying some introduction (Kabbalah) that you lacked, then it is very likely that he did not just utter a sentence without content.
Regarding Derrida and his friends – Sometimes wise people have to admit that they do not encompass all the wisdom of the world and that there may be a field of knowledge or a style of thought that they are far from grasping despite their genius. Perhaps there is no standardization of wisdom and it is possible that one wise person will not understand the language of his friend.