Let me add to the list of improvements (The Morning After) to my posture that I have noticed since my yoga retreat. I mentioned that my standing pose — tadasana — seemed to fit together more neatly and naturally. An additional aspect is that my shoulder blades are more closely drawn together and pulled towards the waist. This adjustment pulls my shoulders back and expands my rib cage — I guess, this is what is meant by a heart opener. It also makes it a lot easier to keep the rest of the torso in place.