All embodied souls are under the control of the three modes or qualities of material nature: goodness, passion, and ignorance. Lord Krishna explains what these modes are, how they act upon us, how one transcends them and the symptoms of one who has attained the transcendental state. 

His Divine Grace A.C. Bhaktivedanta Swami Prabhupada is uniquely qualified to present this English translation and commentary on Bhagavad-gita. He is the world's foremost Vedic scholar and teacher, and he is also the current representative of an unbroken chain of fully self-realized spiritual masters begining with Lord Krishna Himself. Thus, unlike other editions of the Gita, this one is presented as it is--without the slightest taint of adulteration or personal motivation. This edition is certain to stimulate and enlighten with its ancient yet thoroughly timely message.

Chapter 14 -- The Three Modes of Material Nature -- Bhagavad-gita As It Is -- Srila Prabhupada

Madhudvisa