https://www.youtube.com/watch?v=JhM3gZ3P1pI&feature=player_detailpage
la posture en zazaen : precautions
https://www.youtube.com/watch?feature=player_detailpage&v=aubOncTjcjA
la posture en zazaen : precautions
https://www.youtube.com/watch?feature=player_detailpage&v=aubOncTjcjA