Supta Kurmasana and Rolfing Insights...
I can get into supta kurmasana - but if I want to bind hands and have the feet crossed behind the head someone always helps me. Dr. Disco was showing me her supta kurmasana pointers - which were helpful but I still was putting my left leg behind my head while sitting up and then rolling around trying to get the right foot behind. My knees are on the floor in baddha konasana - so it is not a hip-opening issue. I can get into yoga nidrasana alone - which is the same asana flipped. I was looking for the reason for the problem because understanding the issue is the key to the problem.
Ken the rolfer asked me - out of the blue - how my supta kurmasana was. I told him and he said that I have a slight side-to-side spine curvature. Apparently my tailbone curves to the left - which is news to me. So when I go into supta kurmasana (left leg first as per the ashtanga orthodoxy) both my natural curve and the curve of the pose is very to the left. Then, while balancing on my left-leaning tailbone (so gravity is sealing the left-turning) I try to get my right leg behind my head. The reason others can put me into it is because my right hip is open and I am on the floor - not on my tailbone - when they adjust me. He suggested that I try doing supta kurmasana right leg first (not during practice of course) to counteract this.
So at home I tried going into yoganidrasana right leg first by taking my right gluteus maximus in my right hand and pulling the cocix firmly to the right - rather indelicate but effective. Suddenly getting into yoganidrasana is easier and I could feel the whole issue in my body and recognize that, for example, I would rather throw my left leg than my right over a motor scooter seat - because I feel that I prefer a left side bend. This new understanding does not solve the problem of balancing on a sitbone that is curved in the wrong direction to get into supta kurmasana. Perhaps I will have to get into supta kurmasana while still on the floor in kurmasana, reaching around and adjusting myself indelicately. If you are reading this and have any helpful thoughts, please comment...
I asked Ken if I should try to change the curvature of my spine and he said, "well, it is not terribly important... it shouldn't be the focus of your life... you should be happy that you are doing second series poses and have done ashtanga for as long as you have with no chronic injuries." So, apparently this is not something that will affect my health in some important way. He also told me, "I think you have the loosest feet I have ever worked on" and, "You have toes that most yogis would die for." I probably blushed. Perhaps I need to show my feet off more in social situations and wiggle my toes ...