> To understand Yoga in its essence I would advice you to read Swami Vivekananda's complete works.
Yeah and likewise to understand Computer Scienmce in its essence I would advice you to read D.E. Knuth's complete works and not profess to know any CS until you memorize each and every algorithm in TAOCP! You see how ridiculous that sounds ? That's the whole problem. Yoga a few centuries ago might have meant what you said, but as practised today, in the here and now, simply means acrobatic gym sessions with contortions paid for by your montly paycheck. Its unfortunate, but that's what it is.
Bringing in Kipling into this discussion is hugely ironic considering how much of a royal prick he was in his attitude towards Indians ( Kipling's transparently racist portrayals of Indian characters in Kim and Gunga Din, among others )
The Times article is about genuine medical risks posed by spinal twists and headstands, which are, unfortunately becoming more and more commonplace as sedentary officegoers frequent yoga studios to add some yoga to their fitness regimen. None of those people are remotely interested in karmayoga or nyanayoga - they just want to learn the asanas.
Asanas minus Yoga is not yoga.
But that's the reality of today. Learning shirasasana without learning its spiritual yogic root is akin to calling yourself a programmer and not knowing what a red-black tree is. But guess what, most programmers today don't know what a red-black tree is. That's sad, but its also a reality and we have to deal with reality as it exists, not based on Kipling's delusional rants. There are hundreds of actual people with actual broken ribs who desperately want to learn matsyasana and don't give a flying f--- who gautama buddha or ramakrishna paramahamsa or swami vivekananda was. That's just the way it is.