To procure prophetic dreams, take a clean linen bag and write upon it the names given below. Fold it up and make it into a lamp-wick, and set it alight, pouring pure oil over it. The word to be written is this: 'Armiuth, Lailamchoüch, Arsenophrephren, Phtha, Archentechtha.' Then in the evening, when you are going to bed, which you must do without touching food [or, pure from all defilement], do thus. Approach the lamp and repeat seven times the formula given below: then extinguish it and lie down to sleep. The formula is this: Sachmu . . . epaëma Ligotereënch: the Aeon, the Thunderer, Thou that hast swallowed the snake and dost exhaust the moon, and dost raise up the orb of the sun in his season, Chthetho is thy name; I require, O lords of the gods, Seth, Chreps, give me the information that I desire...