Recently a friend posted a Facebook link to an article about the dangers of meditation. In response, I commented that the problem is not with meditation; it's with doing deep meditation and other practices with a lousy teacher or no teacher. I wrote an article a number of years ago that addresses the issue of whether there is such a thing as a safe place in the world of self-help/spiritual workshops ... or for that matter, anywhere. I hope it helps: This Is a Safe Place