No, mostly zazen is nothing like what anyone would hold up as “enlightenment.” It’s lots of boredom and stiff legs and just trying your best to get through it. Occasionally insights arise, and some of them can be quite amazing. But mostly, your teachers — if they’re any good — will tell you to forget about them. If you believe that at the end of all this pain and boredom you’ll be rewarded with the peak experience to end all peak experiences, maybe you can get through it. But if someone tells you that the practice itself is enlightenment? Come on! What is that?
