Acharya Prashant explains that the Upanishads are not ancient stories of the past but represent a continuous, living reality occurring in the present. He emphasizes that the characters of the Katha Upanishad, such as Nachiketa, Udhalak, and Yamraj, exist within us today. To truly understand the Upanishads, one must relate the journey of Nachiketa to their own daily life, emotions, and impulses. The speaker highlights that Nachiketa’s eligibility for truth began when he prioritized facts over social or familial ties, questioning his father’s hollow charity. This courage to choose truth over personal relationships or physical security is the primary requirement for a seeker. Acharya Prashant further describes how Nachiketa demonstrated immense patience and fearlessness by waiting at the gates of Yamraj for three days without food or water. He explains that Yamraj is not a physical entity but a symbol of the realization of mortality and the transience of the world. Nachiketa’s refusal to accept worldly pleasures, wealth, or long life in exchange for the secret of death shows his absolute focus on the ultimate truth. The speaker asserts that only those who are tired of living in deception and are willing to face the 'death' of their ego and illusions can attain immortality. True eligibility lies in observing the world honestly, without self-deception, and having the faith to step into the unknown by discarding what is known to be false.