r a time, and then other vain and worldly thoughts followed. This succession of thoughts occupied him for a long while, those about God alternating with those about the world. But in these thoughts there was this difference. When he thought of worldly things it gave him great pleasure, but afterward he found himself dry and sad. But when he thought of journeying to Jerusalem, and of living only on herbs, and practising austerities, he found pleasure not only while thinking of them, but also when he had ceased.
This difference he did not notice or value, until one day the eyes of his soul were opened and he began to inquire the reason of the difference. He learned by experience that one train of thought left him sad, the other joyful. This was his first reasoning on spiritual matters. Afterward, when he began the Spiritual Exercises, he was enlightened, and understood what he afterward taught his children about the discernment of spirits. When gradually he recognized the different spirits by which he wa