In one of the monasteries which he had built in those parts, there was a monk who could not continue at prayers; for when the other monks knelt down to serve God, his manner was to go forth, and there with wandering mind to busy himself about some earthly and transitory things. When he had often been admonished by his Abbot for this fault without any amendment, at length he was sent to the man of God, who likewise very much rebuked him for his folly. Notwithstanding, returning to his monastery, he followed the holy man’s admonition; but, on the third day, he fell again to his old custom, and would not stay within at the time of prayer. Word was once more sent to the man of God, by the father of the Abbey he had appointed there.
Benedict returned the answer that he would come himself, and reform what was amiss, which he did accordingly. It so fell out, that when the singing of psalms was ended, and the hour come in which the monks took themselves to prayer, the holy man perceived that the monk, who used at that time to go forth, was drawn out by the skirt of his garment by a little black boy. On seeing this, he spoke secretly to Pompeianus, father of the Abbey, and also to Maurus saying, “Do you not see who it is, that draws this monk from his prayers?” and they answered him, that they did not. “Then let us pray to God,” he said, “that you also may behold whom this monk follows.” After two days Maurus saw him, but Pompeianus could not.
On another day, when the man of God had ended his devotions, he went out of the oratory, where he found the foresaid monk standing idle. For the blindness of his heart he struck with a little wand, and from that day forward he was so freed from all allurement of the little black boy, that he remained quietly at his prayers, as the other monks did. The old enemy was so terrified, that he dare not suggest any such thoughts again. As though by that blow, not the monk, but the devil himself had been struck.
From the fourth chapter of Bk II of St. Gregory’s dialogues.
But, seriously, it is well to invoke St. Benedict’s intercession for when we are distracted at prayer.