By Carol Vogel, Published: March 12, 2009 http://www.nytimes.com/2009/03/19/arts/artsspecial/19strategies.html?ref=artsspecial New York Times Special Section SOME 150 yoga fanatics, mats in hand, gathered in the second-floor atrium of the Museum of Modern Art one recent Saturday morning. They were there to “Put the oM in MoMA,” as the invitation read. Fred R. Conrad/The New York Times Ellen Wright, via Flickr A photo …