Here is an excerpt:
Pema Chödrön has said that it is a gesture of enormous bravery to sit up with an open front. For a long time I thought being brave meant fighting through pain and beating it down without mercy. Perhaps meditation takes a different kind of courage, one that requires us to seek out support, accept it, and practice sitting up tall in the face of our own experience, uncertain as it may be. In my own practice, this means providing the body with enough support so it feels comfortable and spacious. When we discover this kind of space, I believe our meditation experience can also expand to include and accommodate whatever might occur.
Read more here.