Berman thinks western society is on the wrong track. But he thinks, unlike most "wrong turners" who think western civilization went wrong in the 19th (imperialism) or 20th (fascism) century, that the "wrong turn" was taken earlier: in the 16th century, when western culture established the denial of the body and begun to one's spiritual, or monetary, or professional, etc., credentials as far more important to the "real person" than what one actually feels and experiences.
This, says Berman, leads to many bad results, from self-important status-seeking (since one's car is considered more "objectively" a value of one's worth than one's own "subjective" experiences) to religious prosecution (thinking the right thoughts or having the best formal beliefs as most important), to the rise of the Nazis, etc. What's more, the attempts to scale back from the mental or financial worldview to the non-cereberal spirituality is merely bastardized in today's culture: e.g., people practice Zen Buddhism as a tool for finding the "right state of mind", to make more money in business, which defeats the whole purpose.
Berman's thesis is intriguing. The problem is that it doesn't fit the facts too well. For example, more serious research into both eastern mysticism and western culture, I believe, shows western culture was never so "anti-body", nor eastern one so "pro-senses", as people popularily think. The rise of the Nazis was a very complex affair and in many cases they saw the enemy precisely in the "intellectual" or "capitalist" Jew and were *for* direct, non-thinking, sense-satisfying world views. Berman thinks this is a bastardization of true spirituality (true "sensuality"?), and no doubt he is right, but still the problem remains.
Berman's bold thesis is interesting and quite useful as a counter-point to the standard view of the western culture as one of steady advance. But Berman's thesis is simply too general and all-pervasive to be adequately supported by his sources.