Andrew Huberman· PhD
Dr Su Mill was the one who really emphasized that by putting the Palm parallel to the sky to the ceiling and twisting a bit so that you're turning that pinky toward I would say the best way to describe this is to turn that pinky toward your head okay not away from your head but toward your head while still maintaining a flat palm and reaching as much as you can and extending all the way from the heel of that back foot all the way up to your palm that you're getting stretching not just of the soas but they also getting activation of some of the neurofascial aspects going from Palm all the way to heel that provide some relief that is some relaxation of the musculature that otherwise is providing tension of the spine pelvic interface and that can allow for better posture longer spine and at the same time strong spine positioning