Psychotherapists have been prescribing mindfulness-based interventions at increasing rates in the past few decades. You can't escape mindfulness, you'll hear about it everywhere you go. Yet, most of the literature about mindfulness or meditation and its impact on health is written in Sanskrit. Some of it is translated, and some of the translations make their way into English-language papers in psychotherapy or psychology journals, but it's such a small amount.
Rather that dig through Buddhist texts, we have created our own, new set of practices called "mindfulness meditation", prescribing it left and right, going on vipassana retreats, reading books on transcendental meditation, etc.
Mindfulness meditation is a western invention assembled out of pieces, taken out of context, of Buddhist and other traditions. Transcendental meditation was invented by a yogi in the 1950s. To be clear, I'm not talking about how recent these are in order to imply that older traditions are better--but older practices are better studied and we don't read about the older practices.
You can find a ton of studies in western medical journals about the benefits of various MBIs, but these studies, taken as a whole, are somewhat troubling. One troubling aspect is that many of the benefits are based on data which is self-reported, and the nature of questions in a self-reported study is limited. This is normal and expected in these kinds of studies, but it gives us a very narrow selection of observations about the effects of MBIs, and these questions / observations are often selected in order to prove positive effects--researchers, of course, want to prove positive effects of MBIs.
Meanwhile, there's two millenia of scholarly work, including descriptions of negative outcomes from meditation--what those negative outcomes were and how to structure the practice of meditation to prevent those negative outcomes--but these scholarly works are, again, not written in English and you hardly ever see literature reviews of these works in western medical journals.
Anyway. As a metaphor, it seems like we're exploring a continent, and there are people already living here, but we're ignoring them because they speak Sanskrit, and some of us are getting hurt. It's not even really the ancient texts, but modern texts, even modern texts with English translations.