Primer on the Piriformis
In a classroom of wavering Tree Poses, one tree stood tall
in the corner. The student's Vrksasana had some undulation like the rest, but
at the center was an unusual steadiness that was more than just concentration:
She'd discovered the key that allowed stability and lightness to shine
throughout the whole pose. The key—both surprising and under-appreciated is a
small muscle that contributes mightily to sacral...
