The spine strengthening series has always been challenging for me. Instead of isolating the muscles of my back I have been cheating — using my leg strength, especially in Locust Pose. But the other day, I had a bit of a breakthrough. I finally heard the words of the dialogue that talked about shifting your weight forward. The teacher must have elaborated on this theme or maybe I just finally heard it, but something clicked. I was able to isolate and use my back muscles. Boy, did that feel different.