The spirit

is no doubt the controlling agent of our existence. This invisible seat controls every movement in whatever external situation arises. It is thus, to be extremely mobile, never "stopping" in any place at any moment. Preserve this state of spiritual freedom and non-attachment as soon as you assume the fighting stance. Be "master of the house." It is the ego that stands rigidly against influences from the outside, and it is this "ego rigidity" that makes it impossible for us to accept everything that confronts us.