"All the urges of the passions express vital natural impulses, and it is the animal in us which gives rise to them. The wise man is conscious of them, he knows how to give them their true name and to make use of them as you direct your donkey. But the wise man is rare, and egoism finds a thousand reasons for giving those impulses legitimate motives and flattering names. The human passions are life impulses which have been perverted... and so skillfully perverted that it is very difficult to discover, beneath their complications, the almost divine power which is their source."
De Lubicz, quoted by Ram Dass, Remember: Be Here Now, chapter "Cookbook for a sacred life", section "Karma Yoga".