Time passed. Surin was well enough now to visit the sick, to hear confessions, to preach, to write, to direct souls by word of mouth or by letter. His behaviour was still somewhat odd, and his superiors thought it necessary to censor all his letters, incoming and outgoing, for fear that they might contain unorthodoxies or at least embarrassing extravagances. Their suspicions were groundless. The man who had dictated Le Catéchisme Spirituel, while (to all appearances) out of his mind, could be relied on to display an equal prudence now that he was well.
In 1663 he wrote the Science Expérimentale, with its history of the possession and its account of his own subsequent trials. Louis XIV was already well embarked on his disastrous career; but Surin was not interested in “public affairs and the schemes of the great.” He had the sacraments, he had the gospels to read and ruminate, he had his experiences of God; these were enough. In certain respects, indeed, they were more than enough; for he was growing old, he was losing his strength, “and love does not go too well with weakness; for it requires a stout vessel to resist the pressure of its workings.” The almost manic well-being of a few years before had gone; the regular and easy succession of extraordinary graces was a thing of the past. But he had something else, something better. To Sœur Jeanne he writes that “God has recently given me some slight knowledge of His love. But what a difference there is between the depth of the soul and its faculties! For in effect the soul is often rich in its depths and actually glutted with the supernatural treasures of grace, while its faculties are in a state of utter poverty. In her depths, as I say, the soul has a very high, very delicate, very fruitful sense of God, accompanied by a most comforting love and a wondrous dilatation of the heart, without, however, being able to communicate any of these things to other people. Outwardly, persons in this state give the impression of being without any taste (for the things of religion), devoid of all talent and reduced to an extremity of indigence…. There is an exceedingly great distress when the soul is unable, if the expression may be permitted, to disgorge herself through her faculties; the overplus within her causes an oppression more painful than can be imagined. What is happening in the soul’s depths is like the banking up of great waters, whose mass, for lack of an issue by which to escape, overwhelms her with an unbearable weight and causes a deathly exhaustion.” In some impossibly paradoxical way, a finite being contains the infinite and is almost annihilated by the experience. But Surin does not complain. It is a blessed anguish, a death devoutly to be desired.
In the midst of his ecstasies and visions, Surin had been on a track that led, no doubt, through very picturesque country, but towards a luminous dead end. Now that the extraordinary graces were over, now that he was free to be aware of the proximity of total Awareness, he had achieved the possibility of enlightenment. For now at last he was living “in faith,” precisely as Bastide had urged him to do. Now at last he was standing in intellectual and imaginative nakedness before the given facts of the world and his own life—empty that he might be filled, poor that he might be made supremely rich. “I am told,” he writes two years before his death, “that there are pearl fishers, who have a pipe that goes from the sea floor to the surface, where it is buoyed up with corks, and that through this pipe they breathe—and are yet at the bottom of the sea. I do not know if this be true; but in any case it expresses very well what I have to say; for the soul has a pipe that goes to heaven, a channel, says St. Catherine of Genoa, that leads to the very heart of God. Through it she breathes wisdom and love, and is sustained. While the soul is here, fishing for pearls at the bottom of the earth, she speaks with other souls, she preaches, she does God’s business; and all the time there is a pipe that goes to heaven to draw down eternal life and consolation…. In this state the soul is at once happy and wretched. And yet I think she is really happy…. For without vision or ecstasies or suspensions of the senses, in the midst of the ordinary miseries of earthly life, in weakness and many-sided impotency, our Lord gives something that passes all understanding and all measure…. This something is a certain wound of love which, without any visible outward effect, pierces the soul and keeps it incessantly longing for God.”