Seekers along the path of enlightenment will be glad to find Michelle Weber, a diminutive yet powerful yogi who floats around Miami to teach more than a dozen classes per week in Coconut Grove, Fisher Island, South Beach, downtown Miami, and South Miami. In addition to four years of training in Ashtanga, the 29-year-old Weber also has a master's degree in applied psychology. She says her knowledge of science, including biofeedback, helps her to see patterns of tension in her students that she can alleviate through yoga. Her classes are rigorous, but they don't have the competitive edge found elsewhere; even Weber's most advanced classes emphasize letting go over struggling. Depending on the location, 90-minute group sessions cost about $12. Private sessions start at $70.