Acharya Prashant explains that a foundation in Vedanta allows one to naturally embrace the teachings of Mahatma Buddha, much like a fish takes to water. He highlights Acharya Nagarjuna as the most significant figure for understanding Buddha's philosophy, noting that even Acharya Shankar was deeply influenced by him. The speaker asserts that the future of religion lies solely in Advaitism or Shunyavada (the doctrine of emptiness), as these philosophies address the existential crisis of the individual. He emphasizes that the clarity of Vedanta is most visible in Buddhist philosophy and that the Buddhists performed the essential task of removing the 'rust' from the key of Vedanta. Acharya Prashant chooses to teach Nagarjuna's 'Shunyata Saptati' because of its practical approach to truth, which Nagarjuna categorized into 'Samvriti' (conventional) and 'Paramartha' (ultimate) truths. Acharya Prashant provides historical context, placing Nagarjuna between 100 and 300 AD, born into a Brahmin family in Central India. Nagarjuna was a polymath—a chemist, cosmologist, and psychologist—who used logic to prove that everything is devoid of intrinsic nature (Shunyata). This 'emptiness' applies to the self, the world, and even Nirvana. The speaker explains that Nagarjuna's scientific background helped him realize that while there is action and movement, there is no permanent 'doer' or 'soul' (Anatma). He draws parallels between Nagarjuna's 'Samvriti Satya' and Acharya Shankar's 'Vyavaharik Satya', noting that both agree on the ultimate 'Paramarthic' truth. He argues that ignoring the practical world makes reaching the ultimate truth impossible, as facts are the gateway to truth. Addressing a question on human suffering, Acharya Prashant explains that people do not choose suffering but seek happiness from a center of suffering. He asserts that the beginning determines the end; if one starts from a state of lack or ego, any action taken will only expand that lack and ego. He uses the analogy of a broken car to explain that when the problem is internal, one must travel inward rather than seeking external solutions. He concludes by stating that most religious traditions are becoming obsolete because they are based on superstition, whereas Advaita and Shunyavada remain relevant because of their logical and non-dualistic nature. He urges the preservation of Vedanta to save the essence of religion from being lost to time.