Unfortunately, change and forgiveness do not come easily for me, but ANY willingness to let go inevitably comes from pain; and the desire to change and forgive changes you, and jiggles the spirit, gets to it somehow, to the deepest, hardest, most ruined parts. And then Spirit expands, because that is its nature, and it brings along the body, and finally, the mind.
Breathing is the connection between the mind and the body. When the mind concentrates on the breath, it focuses attention on the present moment. Breathing is the first step on the path to discover your spiritual nature. As you get the body to breathe correctly, the mind settles down, and that creates fertile ground to develop whatever spiritual nature exists within you.