A yoga studio is only as great as its teachers. One could build a million-dollar studio with gently cushioned floors, perfect walls and a Surroundsound stereo system, but if the yogi's wack, it's all for naught. Put another way: Your favorite instructor could hold practice on the banks of a lagoon and you'd follow. Luckily, St. Louis is gradually catching up with the coasts in the number of studios and sessions available. Or at least there are options. It's all a matter of taste, but of the dozen-odd studios in the St. Louis area, we're still partial to Big Bend Yoga Studio in Webster Groves. It offers a wide range of classes for different experience levels, and as you progress, the options expand. Newbies take note: When we were just starting out, Big Bend's basics classes were the most reassuring and helpful of any in town -- and we tried a bunch.