Why are things like this looked down upon by conservatives?

I had an interesting experience on Saturday night--my friend Downs invited me to this concert that was being held at the yoga source downtown. It struck me as an odd place for a concert, but that didn't really deter me. In the entranceway before the standing room there was a giant closet/changing space where everyone was encouraged to put their jackets, cell phones and other loose objects. In the concert hall proper (if you could call it that) the hundred or so people that had arrived before us were all sitting cross-legged on the hardwood floor or on one of the prayer mats that the sponsors were handing out. The band, called Samavayah, consisted of two percussionists, two sitar players a lead chanter, and a dancer (I think--it was kind of hard to see). The kirtan-style music was all in a call-and-response format, so the group would project maybe six Hindi words on the screen behind them, explain their meanings in English and then repeat them for the entirety of a twenty-minute song. Most people chanted along with their eyes closed, but by the end of the performance, the audience was dancing and singing in full unity with the musicians. It was an extremely energetic experience. Another one of the people in our party said the sounds inspired to him to see images in the air around him; if you had been there, this would not have surprised you a bit. Would attend again.