Earlier quoted context omitted.
The eagerness with which people recommend those very intense ten day retreats to anyone saying they'd like to start meditating indicates a problem, in my view. Plenty of people find them valuable, but they're also a pretty extreme way to start out. To me it seems likely to turn people off; after all they're designed to be a kind of boot camp experience. And then on the internet people are often bringing up how they s…
I agree that some people recommend the retreats with too little restraint. I'm a fairly young and healthy person, and I still found sitting still while cross-legged for long periods of time very painful. Even on the last day I found it impossible to sit longer than an hour without moving. And this practice is encouraged -- they were called "sittings of strong determination." This is not to mention the difficulty of m…
The vipassana retreats are built on Buddhism (though the founder prefers to reformulate it in more secular terms) so it's not surprising that they're aimed towards some notion of nirvana.
At the very least, simple breathing exercises can be super obviously relaxing and mind-clearing. Lots of people do them for just ten breaths. Five minutes is quite a lot from that perspective, so I really think we shouldn't dismiss that kind of duration.