When in this body at all portals light (that is to say) knowledge prevails, then should one know goodness to be developed. Avarice, activity, performance of actions, want of tranquillity, desire, these are produced, O chief of the descendants of Bharata! when passion is developed. Want of light, want of activity heedlessness, and delusion, these are produced, O descendant of Kuru! when darkness is developed.