My yoga journey hasn't always been easy, and reading the comments in that post, I know I'm not alone in that respect. The one constant lesson that comes up in my own journey is that the yoga mat is like a mirror. There's no hiding when you're on the mat. You can't fake a downward dog or headstand. You can't fake deep, even breathing. And you can't fake a quiet mind. (You can always tell the calm person from the stressed out person because the stressed out person will be wobbling like crazy during the practice.)