"But there I was every Tuesday and Thursday, trying to sink deeper into Triangle pose, working to extend my Half Moon pose, wishing to unravel my hamstrings in Downward Dog. Why? Because it was free. And because I liked the idea of wrestling with a pose. I liked not doing a half-way job for 60 seconds and then moving on to the next thing. I wanted, desperately, to peel back the pose to its core."