but I think that we have the potential to be much more aware of this connection, whether through meditation or spiritual use of psychotropic substances. This feeling of isolation can be escaped, as anyone who has experienced a state of ego-loss can attest to.
It's a really groovy idea and I hope you're right about the potential. But in my long experience with such things, I've never met, read, or heard of one single individual who has attained enlightenment (if it even exists) and lived that way on a day to day basis. (maybe Ghandi?...<if anyone did it, it was him) The rest of the gurus I've encountered are the biggest egomaniacs on the planet.

I know a lot of people who have used way too many psychotropic substances trying to 'find enlightenment' or 'God' or answers...whatever. All they got for their trouble was problems with paranoid psychosis. My brother-in-law is like that. Likes to think of himself as a guru. Thinks he's the reincarnation of Saint Peter and the Government is after him. I've met a thousand people like him...I've never met anyone who's attained enlightenment from it. Sure you get some 'warm and fuzzys' from high minded thoughts you might have. But you've just dumped high-powered chemicals into your brain. Thoughts, senses and endorphens are running wild. So who's to make the call that this is really 'enlightenment' and not just being fucked up? (yes, I've even tried myself a few times.)

You're right about the 'language' thing for communication though. If we ever evolve to the point where we're like the Star Trek aliens, using telepathy and thinking with 'one mind'...we'll be unstoppable. That day may happen and maybe it won't....I guess experience has made me skeptical and jaded...lol