13th. We should not neglect the reading of spiritual books; but we should read with simplicity, and in a spirit of prayer, and not through curious research. We read in a spirit of prayer when we permit the lights and sentiments revealed to us through the reading to be imprinted on our souls, and when this impression is made by the presence of God rather than by our industry.
14th. We must be armed, moreover, with two or three maxims: first, that a devout person without prayer is a body without a soul; second, that there can be no true and solid prayer without mortification, without recollection, without humility; third, that we need perseverance, never to be disheartened by the difficulties to be encountered in this exercise.
15th. It must be borne in mind that one of the greatest secrets of the spiritual life is that the Holy Spirit guides us therein, not only by lights, sweetness, consolations, and attractions, but also by obscurities, darkness, insensibility, contradictions, anguish, revolts of the passions, and inclinations. I say, moreover, that this crucified way is necessary; that it is good; that it is the surest, and that it leads us much more rapidly to perfection. An enlightened soul dearly appreciates the guidance of God, which permits her to be tried by creatures and overwhelmed with temptations and neglect; and she fully understands that these things are favors rather than misfortunes, preferring to die on the cross on Calvary than live in sweetness on Thabor. Experience will teach her in time the truth of these beautiful words: _Et nox illuminatio mea in deliciis meis; et mea nox obscurum non habet; sed omnia in luce clarescunt._[2] The soul, after her purification in the Purgatory of suffering through which she must necessarily pass, will enjoy light, rest, and joy through intimate union with God, who will make this world, exile as it is, a paradise for her. The best prayer is that in which we most freely abandon ourselves to the sentiments and dispositions which God gives the soul, and in which we study with most simplicity, humility, and fidelity to conform ourselves to His will and to the example of Jesus Christ.
[2] And night shall be my light in my pleasures, and my night knoweth no darkness, but all things shine in light.