Many people that I would otherwise consider level-headed, practical human beings without much tolerance for wishy-washiness have publicly and emphatically sung the praises of Transcendental Meditation (TM). If it was just Deepak Chopra and David Lynch going on about cosmic consciousness, I wouldn't give it another thought. But I like Jerry Seinfeld and think he's pretty smart, and I've always admired Clint Eastwood despite his ramblings at an empty chair. And there are plenty of others who don't seem like your usual New Age types who seem to get something useful out of it. Hugh Jackman, hell even Rupert Murdoch. So this got me curious at least.
So, what is TM? As near as I can tell, it's a mantra meditation technique that involves little more than 'internally' repeating a meaningless word or syllable over and over while sitting comfortably with one's eyes closed. It's not like focusing or concentration, you can let yourself think, but when you wander too much, get back to repeating the mantra. 20 or 30 minutes in the morning and again in the afternoon. That's it. The TM Foundation charges an arm and a leg for someone to instruct you on the proper method, but it seems very simple.
What actually is going on when someone does this, and why does it work? I'm assuming it actually works and isn't 100% placebo effect, because millions of people do it and say it changed their lives. It doesn't seem like a Scientology type of deal, at least not obviously, and while there are some Eastern mysticism trappings about the "source of ultimate reality" the success of the technique by all appearances does not rely on belief in any kind of metaphysical claims. So it must be a physiological effect, and not one that is ordinarily achieved by e.g. listening to a monotonous noise. That tends to put people to sleep. TM practitioners say it gives them this boundless creative energy. Reflect on that for a moment: thinking about the sound 'ay-ma' or 'ki-rim' repeated in one's mind for about 20 minutes can make you feel like you've had a good night's rest and a big breakfast. How is this possible?
There are published studies that examine the effects of TM, most of which seem reputable, though some are of course funded by the Foundation. They are largely interested in characterizing the result of the technique, such as what kind of brain waves it is associated with, what kind of skin response, and how those variables are correlated with whatever the practitioner is hoping to gain (or lose, like stress and anxiety). I haven't found anything that proposes a testable model for how this mental repetition causes what people say it does, and what are the necessary and sufficient components. Does it need to be a meaningless word, or can my mantra be 'coca-cola'? Do I have to keep my mantra a secret? Can I concentrate on repeating a long mantra, like the entirety of the Gettysburg Address? What if my eyes are open? What if I record myself saying my mantra and listen to it in headphones? Is it possible for this technique to be harmful to my health if overdone or done the wrong way?
Also, there are a host of TM alternatives, many of them organized by former TM instructors who didn't feel right about charging the exorbitant fees. Their lawyers have instructed them to claim their technique is not the same as TM, but I don't see how it could be so different since TM is extremely simple. But there are those who insist TM is the only 'real' way.
Does anybody here actually mediate in the way I described, and if so could you offer your thoughts on how you imagine it works on a physiological level?
Seinfeld, Eastwood, Jackman and (arguably) Murdoch are all entertainers - their careers have been in generating popular media for wide consumption. Nothing about this career path suggests that they have any more valuable opinion about TM than any random man in the street. Why would you consider their opinion valuable?
The idea that a person who is well known is somehow an authority on matters outside their area of learning is a common cognitive failing; We evolved in an environment where a person's popularity was likely closely linked to their ability to make life better for the tribe, so it made for a sensible heuristic - weight people's opinions based on their level of popular support and/or their degree of fame and renown.
But in the specialist age that began with the agricultural revolution about five thousand years ago, and particularly in the recent information age where mass celebrity is possible for talented (and even not-so-talented) actors, directors, newspaper barons and even singers, this is a poor way to decide what is or is not a good idea.
People all over the world are shoving strange things into orifices that they really shouldn't, simply because Gwyneth Paltrow is famous, and recommends the practice.
Never mind Seinfeld; What do neuroscientists, psychiatrists, and psychologists have to say about TM? Singing the praises of something is what entertainers do for a living, and smart people pay it no heed (even if the entertainer in question is a paragon of extraordinary wit).
Assuming it actually works and isn't 100% placebo effect, because millions of people do it and say it changed their lives, is yet another bad heuristic. Lots of positively dangerous things are very popular. You could make the same argument for Christianity, Islam, aromatherapy or homeopathy.
Popularity and celebrity endorsement, as the only support for something, are generally a good indication that that something is bullshit - non-bullshit claims don't need to be promoted by celebrities, nor said by millions to have changed their lives, in order to be seen to be worthwhile.
There might be something to it - but the description you give, and in particular, the reasons you give, suggest otherwise.
As Tim Minchin (entertainer) points out, "By definition, alternative medicine has either not been proved to work, or been proved not to work. Do you know what they call alternative medicine that's been proved to work?
Medicine."
I would no more ask Clint Eastwood's advice on the value of TM than I would ask my psychologist for movie acting and directing tips.