Own only the rotation you can enter, breathe in, and return from without forcing the end range.
Rotation is shared through the feet, hips, rib cage, and arms. A smaller turn that is distributed and controllable often gives you more to build from than a larger turn you have to force.
Slow the task down enough to feel the transition. If breathing, pressure, or control disappears, add support or reduce the range until the option becomes usable again.
Try this today
Make the idea practical.
During a walk, let the arms swing naturally and notice whether the rib cage turns with the step.