We can never know what strengths and revelations might be on the other side of our fears until we face them and feel them all the way through. True positive thinking is the mental stance of surrender, simply trusting the process. We learn to accept what is.
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.