I tried it for the first time today.
I smoked a bit of trainwreck before I went. When doing the various stretches and poses, I never realized it could be so intense, not in a vigorous way, but you are trying to balance your body to immaculate form. I didn't realize how inflexible I was! Near the end, the instructor told us to relax, and let all your worries go. For that period, I felt so tranquil, my mind was cleared, all the stress just went away.
For those that want a different method than meditation to clear your mind, I highly recommend Yoga.
