" 9. In conclusion, individuals must not fix the eyes of their souls on that rind of the figure and object supernaturally accorded to the exterior senses, such as locutions and words to the sense of hearing; visions of saints and beautifully resplendent lights to the sense of sight; fragrance to the sense of smell; delicious and sweet tastes to the palate; and other delights, usually derived from the spirit, to the sense of touch, as is more commonly the case with spiritual persons. Neither must they place their eyes on interior imaginative visions. They must instead renounce all these things. They "

― John of the Cross , The Collected Works of St. John of the Cross