Chapter Thirteen: Nature, the Enjoy er and Consciousness.
One who understands the difference between the body, the soul and the Super soul beyond them both attains liberation from this material world.
Chapter Fourteen: The Three Modes of Material Nature.
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.
Chapter Fifteen: The Yoga of the Supreme Person.
The ultimate purpose of Vedic knowledge is to detach oneself from the entanglement of the material world and to understand Lord Krishna as the Supreme Personality of Godhead. One who understands Krishna's supreme identity surrenders unto Him and engages in His devotional service.
