Acharya Prashant explains that the Prajapatis mentioned in the Isha Upanishad represent the forces of nature, such as the sun, moon, and earth, which operate according to the laws of the Self. He clarifies that one does not need to worship these forces but should understand them. He notes a paradox: the more one identifies with the physical body and nature, the more violent and destructive one becomes toward the environment. To truly protect nature, one must remain detached from it and not identify as the physical self. Regarding the concepts of Vidya and Avidya, Acharya Prashant defines Avidya as worldly knowledge and Vidya as the understanding of the false self or the mind. He emphasizes that Vidya is not about understanding the ultimate reality, which is beyond mental faculties, but about observing one's internal reactions to external stimuli. He suggests that parents can teach children Vidya by asking them to describe their feelings, fears, and motivations in response to school environments, rather than teaching them scriptures at a young age. Finally, he explains that both Vidya and Avidya are essential for a complete life. Avidya, or knowledge of the physical world, helps one transcend physical mortality by improving health and safety. Vidya, or self-knowledge, helps one reach immortality by preventing 'inner death,' which occurs when the ego lacks joy, love, and compassion. He warns that the modern world risks producing 'walking corpses'—people who are physically healthy due to Avidya but internally dead due to a lack of Vidya.