“This is the difference between a journey on earth, and that which leads to Heaven. For in the former, not only may we stop without fear of going backward, but rest is necessary that we may sustain our strength to the journey’s end; however, in the latter journey which leads to perfection, our growth in strength is proportionate to our advance, inasmuch as the inferior appetites which throw all possible obstacles in our path to Heaven, grow gradually weaker while our good inclinations acquire new strength. Thus as we advance in piety, our early difficulties fade into the background, and a certain delight, with which God sweetens the bitterness of this life, increases in our souls. Going cheerfully on from virtue to virtue, we finally reach the summit of the mountain.” — Dom Lorenzo Scupoli, pp. 117-18