If you actually serious about becoming immortal, then you should study the Vedic literatures from India. That is Caitanya Mahaprabhu's mission, that in India there is the process, how to become immortal. So He recommended, therefore, He desired, that Indians, you Indians, you have got the facility. Don't spoil your life by imitating the so-called rascal scientists of the Western countries, but you take advantage of the science, spiritual science, which is in India, and distribute the knowledge, because they are in ignorance. Therefore He says, bharata bhumite manusya janma haila yara janma sarthaka kari' karo paropakara [Cc. Adi 9.41] This should be the India's business. This whole world is in darkness, demonic civilization. And India, there is the remedy. So if the Indians take advantage and make his life perfect and then go to the Western countries and distribute this immortal knowledge, that is real business of India.

From Srila Prabhupada's lecture on Sri Caitanya-caritamrta, Adi-lila 1.11 — April 4, 1975, Mayapur