"How can the living entities actually be happy?'' Srimad-Bhagavatam answers this question that the top-most super-excellent religious principle is that which following, the protagonist becomes a devotee of the Supreme Personality of Godhead, without any motive and without being checked by any material impediments. That will make a person completely satisfied, and that is our process. We are educated people how they can develop their dormant love of the Supreme Lord without being impaired by any material condition.
Letter to Janardana, 2 March, 1969