{easy yoga} Butterfly pose - preparation pose for lotus pose

{easy yoga} Butterfly  pose 

preparation pose for  lotus pose

how  to

1.  Sit  up  straight  and  put  soles  together.
    The  heels  should  be close to  the  center of a body.
     Hold  the feet  with hands

2. Move  your  knees  up  and  down
   (Repeat  3~4 times)