We say we aren't listening to ourselves in the name of consideration for others. But this is a false premise because we can't really listen to others until we learn to listen, exquisitely listen, and TO ABIDE by our own heart.
The person who sits is more ready to bring forth clear things than someone who walks or stands. Sitting means peace. Thus we sit, which is bowing in humility among all creatures. Then the individual comes to a quiet peace reaching this peace in light. The light is given in the silence wherein one sits and dwells.