I agree.  No mental state is permanent.  If I go to another one of those meetings, it will be to ask what they envision an enlightened person to be like.  I mean, do they think that an enlightened person doesn't have to eat and poop and hold a job like all the rest of us?  I have moments of enlightenment all the time, but they're nothing that a stubbed toe couldn't undo.  Maybe they would say that's just not enlightenment, but I would say they don't understand how the human mind works.  Being human means being susceptible to sudden unexpected changes in mood and emotion.  There are parts of our brain that see the world with a logical eye, but the other parts are made to undo that fine-tuned intellect.