Letting go is a central theme in spiritual practice, as we see the preciousness and brevity of life. When letting go is called for, if we have not learned to do so, we suffer greatly, and when we get to the end of our life, we may have what is called a crash course. Sooner or later we have to learn to let go and allow the changing mystery of life to move through us without our fearing it, without holding and grasping. I.