Then, afterwards, I was thinking about what Jesus had been telling me, and I said to myself: “How can it be put into practice?” And Jesus, returning, added: “My daughter, in order to know the truths, it is necessary to have the will, the desire, to know them. Imagine a room in which the shutters are closed: as much sunlight as there might be outside, the room remains always in the dark. Now, opening the shutters means wanting the light. But this is not enough, if one does not take advantage of the light to reorder the room, dust it, get down to work, almost so as not to kill the light that one is given, and render oneself ungrateful. In the same way, it is not enough to have the will to know the truths, if in the light of the truth that illuminates him one does not try to dust himself of his weaknesses, and reorder himself according to the light of the truth he knows, and, together with the light of the truth, get down to work, making of it his own substance, in such a way that the light of the truth which he has absorbed may shine forth from his mouth, from his hands, from his bearing. It would then be as if he killed the truth; and by not putting it into practice, it would be like remaining in total disorder before the light. Poor room, full of light, but all messy, upside down, and in total disorder, and someone in it who does not bother reordering it—what pity would it not arouse? Such is one who knows the truths and does not put them into practice.
“Know, however, that in all the truths simplicity enters as the first nourishment. If the truths were not simple, they would not be light, and would not be able to penetrate into the human minds in order to illuminate them; and where there is no light, objects cannot be distinguished. Simplicity is not only light, but is like the air that one breathes which, while it cannot be seen, gives the respiration to everything; and if it wasn’t for the air, the earth and everyone would remain without motion. So, if the virtues, the truths, do not carry the mark of simplicity, they will be without light and without air.”