that "Indra was weaker than the Asuras when he did not know his own Atman (soul, self). 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. Finally, the Deva-Asura battle targets the soul, where Asuras fail and Devas succeed, because soul-force is serene and inherently good, asserts Chandogya Upanishad. Chapter 3.5.2 of the Brihadaranyaka Upanishad describes Devas, Men, and Asuras as sons of Prajapati, the primordial father. Each asks for a lesson on ethics. Prajapati tells the Devas to observe the virtue of temperance (self-restraint, Dama), the Men to observe the virtue of charity (Dana), and Asuras to observe the virtue of compassion (Daya). At the end of the chapter, the Upanishad declares that these are three cardinal virtues that should always be observed by all Devas, Men and Asuras. Medieval era Indian scholars, in their Bhasya (review and commentaries) on the Upanishads, stated that the discussion of Devas and Asuras in the Upanishads is symbolic, and it represents the good and evil that resides and struggles within each human being. Adi Shankara, for example, in his commentary on Brihadaranyaka Upanishad asserted that Devas represent the human seeking for the sacred and spiritual, while the Asuras represent the human seeking for the worldly excesses. Edelmann and other modern era scholars also state that the Devas versus Asuras discussion in Upanishads is a form of symbolism. In the later primary Upanishadic texts, Devas and Asuras discuss and act to seek knowledge, for different purposes. In one case, for example, they go to Prajāpati, their father, to understand what is Self (Atman, soul) and how to realize it. The first answer that Prajāpati gives is simplistic, which the Asuras accept and leave with, but the Devas led by Indra do not accept and question because Indra finds that he hasn't grasped its full significance and the