St. Honoratus the Abbot was so full of the love of God, and so desirous to serve and glorify Him, that not only by day, but even by night, all his thoughts and affections were directed to Him. While asleep, he made short and fervent instructions upon the obligation and the manner of loving God, and his very dreams were filled with the love of God, piety, and devotion.
Similar was the course of life of the glorious St. Vincent Ferrer, whose heart and mind were full of God. He was always thinking of God; he never spoke but of God, or with God. Whether walking, sitting still, studying, or conversing, he always seemed absorbed in God, whose love appeared upon his lips, in his face, in his eyes, in all his sentiments, in all times and places, even when he was asleep; so that, through the cracks in his door, his room was often seen illuminated by the splendor that beamed from his face as he slept.
The excessive heat which many souls suffered from this sacred flame, would seem incredible. St. Aloysius Gonzaga experienced it to such a degree that his face appeared all on fire; St. Catherine of Sienna, so that natural fire seemed to her cold rather than warm; St. Peter of Alcantara, so that if he plunged into an icy pond, the water would boil as if red-hot iron had been put into it; St. Francis di Paula, so that he could light lamps with a touch of his finger, as well as with a blazing taper; the Venerable Sister Maria Villani, so that on turning her thoughts interiorly to God, or her eyes exteriorly towards some object of devotion, she would feel as if on fire.
Text from A Year With the Saints (New York: P.J. Kenedy & Sons, 1891).