1614. Its second general working or action was into the breathing of the lungs, at the left side, which was of a kind that would scarcely be understood, even if described. For it gently led my breathing from within, so that I had no need to draw in breath and breathe by any effort of the will. Heaven from within was controlling, not the very substances of the lungs, but their animation-that which causes the motion of the lungs. Thus it was in the inward tissues not visible to the eye, for I felt the animation to be ruled by heaven, without any deliberate animation of my own, so that I had no need to draw breath or air, but was led by heaven. The breathing intervals were the same length as usual.