Of the hindrance and harm that may be caused by apprehensions of the understanding which proceed from that which is supernaturally represented to the outward bodily senses; and how the soul is to conduct itself therein.
7. The soul, then, must never presume to desire to receive them, even though, as I say, they be of God; for, if it desire to receive them, there follow six inconveniences.
The first is that faith grows gradually less; for things that are experienced by the senses derogate from faith; since faith, as we have said, transcends every sense. And thus the soul withdraws itself from the means of union with God when it closes not its eyes to all these things of sense.
Secondly, if they be not rejected, they are a hindrance to the spirit, for the soul rests in them and its spirit soars not to the invisible. This was one of the reasons why the Lord said to His disciples that it was needful for Him to go away that the Holy Spirit might come; so, too, He forbade Mary Magdalene to touch His feet, after His resurrection, that she might be grounded in faith.
Thirdly, the soul becomes attached to these things and advances not to true resignation and detachment of spirit.
Fourthly, it begins to lose the effect of them and the inward spirituality which they cause it, because it sets its eyes upon their sensual aspect, which is the least important. And thus it receives not so fully the spirituality which they cause, which is impressed and preserved more securely when all things of sense are rejected, since these are very different from pure spirit.
Fifthly, the soul begins to lose the favours of God, because it accepts them as though they belonged to it and profits not by them as it should. And to accept them in this way and not to profit by them is to seek after them; but God gives them not that the soul may seek after them; nor should the soul take upon itself to believe that they are of God.
Sixthly, a readiness to accept them opens the door to the devil that he may deceive the soul by other things like to them, which he very well knows how to dissimulate and disguise, so that they may appear to be good; for, as the Apostle says, he can transform himself into an angel of light. Of this we shall treat hereafter, by the Divine favour, in our third book, in the chapter upon spiritual gluttony.