How important is it to have one’s back completely (as much as possible) straight during meditation? How important are these postures anyway? (from Tao Bums)

I had some excellent experience on jury duty, sitting in a chair. Two things are important to me, sitting in a chair: sit on the edge of the chair, as I believe you describe (a chair with four legs solid on the floor); then, one foot flat on the floor with the knee at about a 90 degree angle, and the ball of the other foot resting on the floor under your tailbone, approximately. I sit this way all day at the computer, and have done so for the last twenty years. read more