Today, as I did the locking gate pose, vasishtasana, I experienced the closing of my flank as I leaned into my side. And the wonderful opening of my chest as my arms flew out like wings. After this asana, I transitioned into side plank asana quite easily. My entire torso suspended in a smooth plank, supported by one arm and the side of my foot, did not buckle one bit. I felt light, upward rising.