The nerves and fear in anticipation are not you. You are the watcher of these energy forms. The nerves and fear arise when you are not dwelling in the present moment. The fight is never difficult when it arrives, because during it you are forced to be alert in the present moment. But during the lead up to it and afterwards we often forsake the present moment and begin to inhabit the past and the future in our minds; by doing so we unwittingly rob ourselves of our power and life itself. For the present moment is all we have and is life itself. You are life has never been not now. It has always been in the now, no matter how many times you have sprinted to try and get to the next moment. Life has always taken place in the present moment.