 Once Indra had self-knowledge, he became independent, sovereign and victorious over the Asuras"; similarly, states Kaushitaki Upanishad, "the man who knows his inner self gains independence, sovereignty and is unaffected by all evil".Chandogya Upanishad, in chapter 1.2, describes the battle between Devas and Asuras on various sensory powers.This battle between good and evil fails to produce a victor and simply manifests itself in the perceived universe, as good or evil sights witnessed by beings, as good or evil words shared between people, as good or evil smells of nature, as good or evil feelings experienced, as good or evil thoughts within each person.