Ann talked about zazen posture.
“Zen’s practice special condition involves sitting in zazen, becoming frustrated by it, discovering the source of one’s own resistances to it, also discover the ways to draw on one’s inner resources against being distracted”
Ken Wibler
Zen and the Brain: Toward an Understanding of Meditation and Consciousness 14 James H. Austin June 4, 1999
Hakone Zendo 